(1) That key will come in handy if you lock yourself out. (2) A few more traveler's checks may come in handy on holiday. (3) It may come in handy.
come in handy [kʌm in ˈhændi] 📢 UK📢 US
vt.公开；揭露；使显露；使暴露；
adj.可想像的；可能的；
（把…）与…相比；比得上， 可与…相比；比较；
迟早有用；
(1) They all babbled simultaneously. (2) The two guns fired almost simultaneously. (3) The radar beam can track a number of targets almost simultaneously.
(1) natural selection ensures only the fittest survive to pass their genes on to the next generation. (2) As we know, this theoretical proposal emphasizes the dimensions of species, aptitude and natural selection. (3) It affords, says Morgan, " a good'illustration of the operation of the principle of natural selection. "
(1) be aware of an own existence is the biggest happiness. (2) You must have studied the market and be aware of the present soaring market. (3) Each interruption wakes you for a moment, but you may not be aware of it.
(1) You are free to leave the house at will. (2) The serf - owners had the right to beat , abuse or even kill the serfs at will. (3) The dark days when imperialism could carve up the world at will are gone for ever.
at will [æt wil] 📢 UK📢 US
任意，随意；信；
vt.打扰，妨碍；使骚动；使不安，使烦恼；妨碍睡眠（休息等）；
vt.显露；揭露；泄露；[神]启示； n.揭示，展现；[建]门侧，窗侧；
vt.确保；担保获得[避免]；使（某人）获得；使安全；
(1) to pull/squeeze the trigger (2) He kept his finger on the trigger. (3) The trigger for the strike was the closure of yet another factory.
(1) The countryside was dotted with small villages. (2) Small villages dot the countryside. (3) There are lots of Italian restaurants dotted around London.
(1) He spoke fluently and without unnecessary hesitations. (2) I have no hesitation in recommending her for the job. (3) [不可数名词, 可数名词]She agreed without the slightest hesitation .
(1) The idea evolved from a drawing I discovered in the attic. (2) The company has evolved into a major chemical manufacturer. (3) Each school must evolve its own way of working.
evolve [iˈvɔlv] 📢 UK📢 US
adj.壮观的，豪华的；极好的或令人满意的；闪亮的；为众人所推崇的；
adv.看来似乎；表面上看来；貌似；
vt.使发展；使进化；设计，制订出；发出，散发； vi.发展；[生]通过进化进程发展或发生；
n.报仇，报复； vt.为…报仇，报…之仇；
(1) Few businesses are flourishing in the present economic climate. (2) These plants flourish in a damp climate. (3) (especially British English)I'm glad to hear you're all flourishing.
(1) frequently held misconceptions about the disease (2) a popular misconception (= one that a lot of people have) (3) Let me deal with some common misconceptions .
(1) So you wouldn't consider this to be a normal rescue procedure. (2) Berths on steamships can be booked a long while in advance. (3) All bookings will be made 3 days in advance.
(1) advice on etiquette (2) medical/legal/professional etiquette (3) This was such a great breach of etiquette, he hardly knew what to do.
etiquette [ˈetɪket] 📢 UK📢 US
把…记下来；
n.礼仪，礼节；规矩；礼数；
n.证明书；文凭，结业证书； vt.发给证明书；用证书证明（或认可）；
n.人口统计学家；
(1) Older people comprise a large proportion of those living in poverty. (2) The committee is comprised of representatives from both the public and private sectors. (3) The collection comprises 327 paintings.
(1) He was diagnosed as severely dyslexic but extraordinarily bright. (2) I had a terrible head and was extraordinarily drunk. (3) Apart from the hair, he looked extraordinarily unchanged.
(1) There were several simultaneous attacks by the rebels. (2) simultaneous translation/interpreting (3) The game will be broadcast simultaneously on TV and radio.
simultaneous [ˌsɪmlˈteɪniəs] 📢 UK📢 US
adj.政治的；政党的；对政治有兴趣的；争权夺利的；
adj.无比的，无双的，空前的；空前的；盖世；
n.礁，暗礁；[矿]矿脉；[航]缩帆部，榫帆部； vt.收帆，缩帆；
adj.同时发生的，同时存在的；同时的；联立的； n.同时译员；
(1) a coral reef (2) An unspoilt coral reef encloses the bay. (3) The KAZ 11 was spotted adrift on the outer Great Barrier reef on Wednesday.
reef [ri:f] 📢 UK📢 US
n.名望，声誉；威名；声威；
出生证明；
n.礁，暗礁；[矿]矿脉；[航]缩帆部，榫帆部； vt.收帆，缩帆；
n.不变，不变性，永恒性；
(1) Thus, the keeper will regularly pulverize the peat to maintain a tropical atmosphere in the terrarium. (2) These under tank heaters permanently adhere to your terrarium, forming a solid bond for optimum transfer.
terrarium [teˈreəriəm] 📢 UK📢 US
n.刺耳的声音，不和谐的声音；
v.知道； 意识到；
n.陆地动物饲养所，玻璃容器；
adj.富于想像力的，运用想像力的；想象或创造出来的；沉溺于想象的；虚假的；
(1) Newton's laws of motion (2) The swaying motion of the ship was making me feel seasick. (3) (formal)Do not alight while the train is still in motion (= moving) .
(1) the monkey's prehensile tail (2) Poets are those strangely prehensile men. (3) They have prehensile lips for feeding on leaves and saplings.
prehensile [prɪˈhensaɪl] 📢 UK📢 US
n.旅行者，观光客；〈美〉冬季到南部做工的流动工人；
adj.适于抓住的；
n.调合；混合；调合物；
vt.& vi.（使）窘迫，（使）局促不安；（使）困难；
(1) One can overdress as well as appear sloppy. (2) Avoid the tendency to overdress. You will reduce unnecessary sweating which contributes to heat loss.
overdress [ˈəuvəˈdres] 📢 UK📢 US
adj.受尊敬的，有声望的；<古>魔术的，欺骗的；
v.（使）穿得太讲究； n.外衣；
v.知道，了解； n.机智；头脑；理解；悟性； adj.有见识的，懂实际知识的，通情达理的；
n.恭维；敬意；道贺，贺词；致意； vt.向…道贺；称赞；向…致意；
(1) It is turret to convey information up and down floor for ventilation and lighting. (2) It has used the turret of BMP 3 , but its chassis is designed by China. (3) Based on them , the position of the turret effect on the FPSO hydrodynamic performance is analyzed.
turret [ˈtɜ:rɪt] 📢 UK📢 US
adj.重要的，主要的；前列的；首位的； n.行距；铅框； v.领导(lead的ing形式)；
n.威胁；恐吓； vt.&vi.威胁；恐吓；
n.炮塔，转塔；塔楼，角楼；
vt.使受欢迎；普及；使通俗化；使流行；
(1) an inventory of the museum's contents (2) The inventory will be disposed of over the next twelve weeks. (3) inventory control
(1) Venerable oaks forms a sylvan archway. (2) Claire sylvan is the executive director of the group. (3) Sharing their expertise, they provide unequaled personal service to sylvan customers.
(1) He was accused of appropriating club funds. (2) Some of the opposition party's policies have been appropriated by the government. (3) Five million dollars has been appropriated for research into the disease.
appropriate [əˈprəʊpriət] 📢 UK📢 US
adj.适当的；恰当的；合适的； vt.占用，拨出；
adj.可量度的；可测量的，可预见的；重大的；
n.鉴赏家，鉴定家；行家，内行，权威；
v.反抗；叛；
(1) The brown rat has prominent ears and a long scaly tail. (2) If your skin becomes red, sore or very scaly, consult your doctor. (3) The Drake is a huge and scaly beast, able to breathe bolts of frost.
(1) He was looking forward to working with the new Prime Minister. (2) Motor traders are looking forward to a further increase in vehicle sales. (3) Take a frequent backward look at yesterday, you will value today and look forward to tomorrow.
(1) They drilled through several layers of rock to reach the oil. (2) a cave with striking rock formations (= shapes made naturally from rock) (3) The tunnel was blasted out of solid rock.
(1) scatter the grass seed over the lawn. (2) scatter the lawn with grass seed. (3) They scattered his ashes at sea.
scatter [ˈskætə(r)] 📢 UK📢 US
n.泰然自若；自信；体态；姿态； vt.使平衡；保持（某种姿势）；抓紧；使稳定；
adv.很，十分，特别，极其；离奇地；出奇；倍加；
vt.搅动，摇动；使不安；激烈讨论； vi.鼓动，煽动；
vt.（使）散开，（使）分散，驱散； vi.撒开；分散； n.撒布，散播；
(1) Is it customary to tip hairdressers in this country? (2) She arranged everything with her customary efficiency. (3) It is customary to offer a drink or a snack to guests...
customary [ˈkʌstəməri] 📢 UK📢 US
n.调味品，佐料；
adj.卷曲的，古怪的；变态的；
adj.习惯的；通常的；照惯例的； n.习惯法；风俗志；
vt.获得；贮藏，积累； n.谷仓；
(1) He volleyed the ball spectacularly into the far corner of the net. (2) My turnover increased spectacularly. (3) Many of her movies had been spectacularly successful.
(1) The male bird is easily distinguishable from the female. (2) The coast was barely distinguishable in the mist. (3) She has already distinguished herself as an athlete.