(1) Stay well away from the helicopter when its blades start to rotate. (2) rotate the wheel through 180 degrees. (3) The EU presidency rotates among the members.
rotate [rəuˈteit] 📢 UK📢 US
vt.& vi.（使某物）旋转；使转动；使轮流，轮换；交替； adj.[植]辐状的；有辐射部分的；
vt.& vi.尝试，试图；尽力，竭力； n.努力，尽力；
n.咽喉；颈前部；[植物学]管颈； vt.用沙哑的声音或嗓音发音；
vt.攀登；继承；占领； vi.上升；爬坡；追溯；
(1) an educational/financial, etc. institution (2) the Smithsonian institution (3) a mental institution
institution [ˌɪnstɪˈtju:ʃn] 📢 UK📢 US
vt.调查；审查；研究； vi.作调查；
n.（大学、银行等规模大的）机构；惯例，制度，规定，建立；社会事业机构；<口>名人，名物；
adj.美丽的；别致的；生动的；奇特的，独创的；
n.遵守；顺从；服从；（教会的）权威；
(1) a box of matches (2) to strike a match (= to make it burn) (3) to put a match to sth (= set fire to sth)
(1) black volcanic ash (2) The town was reduced to ashes in the fighting. (3) the glowing ashes of the campfire
ash [æʃ] 📢 UK📢 US
vi.符合，一致；相应；通信；
n.同伴；[天]伴星(=~star)；（用于书名）指南；同甘共苦的伙伴； vt.同行；陪伴；
n.灰，灰烬；灰色，苍白；骨灰；废墟；
adj.尽责的；承担责任；负有责任的；懂道理的；
(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) Under no circumstances should you lend Paul any money. (2) Don't open the door, in any circumstances. (3) The ship sank in mysterious circumstances.
(1) a state banquet in honour of the visiting President (2) Last night he attended a state banquet at Buckingham Palace. (3) He entertained me with a banquet.
banquet [ˈbæŋkwɪt] 📢 UK📢 US
n.宴会，盛宴；筵席；宴请，款待； vt.宴请，设宴招待；饮宴，参加宴会； vi.参加宴会；
vt.& vi.唤醒，（使）觉醒；（使）意识到； vt.激起；
vt.& vi.出版，发行；发表，宣布（结婚等）；公布，颁布；出版…的著作；
n.盖子；限制；[口]果盖；[口]遮盖； vt.给…盖盖子；
(1) to launch an appeal/an inquiry/an investigation/a campaign (2) to launch an attack/invasion (3) a party to launch his latest novel
(1) You can claim back your travelling/travel expenses. (2) We were taken out for a meal at the company's expense. (3) He built up the business at the expense of his health.
(1) The plane was spinning out of control. (2) a spinning ice skater (3) My head is spinning (= I feel as if my head is going around and I can't balance) .
(1) God is often conceived of as male. (2) I cannot conceive (= I do not believe) (that) he would wish to harm us. (3) I cannot conceive what it must be like.
conceive [kənˈsi:v] 📢 UK📢 US
n.奖；表扬；嘉奖状；推荐；
n.告别，欢送；欢送会；告别辞； int.再见，再会；一路平安； adj.告别的，送行的；
vt.& vi.怀孕；构思；想像，设想；持有； vi.怀孕；设想；考虑；
n.，蠢笨蠢笨；愚行；讽刺剧；
(1) It wasn't a ghost; it was a real person. (2) pictures of animals, both real and mythological (3) In the movies guns kill people instantly, but it's not like that in real life .
(1) He turned to crime when he dropped out of school. (2) The crime rate is rising. (3) crime fiction/novels (= stories about crime)
crime [kraɪm] 📢 UK📢 US
n.罪行，犯罪；罪恶； v.指控犯罪；判定犯罪；处罚军事犯；
vt.宣布；声明，声称；申报；[法]供述； vi.声明，发表宣言；宣称；
vt.（通常因道义上的原因而）谴责；宣判；宣布…不能使用；迫使…陷于不幸的境地；
adj.杰出的；显著的；凸出的；未完成的；
(1) The plan was brilliant in its conception but failed because of lack of money. (2) Marx's conception of social justice (3) He has no conception of how difficult life is if you're unemployed.
(1) I certainly think there should be a ban on tobacco advertising... (2) Do you think I ought to seal the boxes up?... (3) Nora thought he was seventeen years old...
(1) He was impossibly handsome (= it was difficult to believe that he could be so handsome ) . (2) a virtual impossibility (3) an impossibly difficult problem (= impossible to solve)
(1) The hills were shrouded in mist . (2) Early morning mist patches will soon clear. (3) The origins of the story are lost in the mists of time (= forgotten because it happened such a long time ago) .
(1) How you can be so insensitive absolutely beats me. (2) beat it before it's too late. (3) Can you beat it; there was Graham Greene in Freetown and there was I on the other side of Africa.
(1) French air traffic controllers have begun a three-day strike in a dispute over pay... (2) Staff at the hospital went on strike in protest at the incidents. (3) ...their recognition of the workers' right to strike...
(1) They determined to start early. (2) An inquiry was set up to determine the cause of the accident. (3) We set out to determine exactly what happened that night.
(1) factors influencing the determination of future policy (2) Both methods rely on the accurate determination of the pressure of the gas. (3) fierce/grim/dogged determination
(1) They decorated the room with flowers and balloons. (2) The cake was decorated to look like a car. (3) I hate decorating.
decorate [ˈdekəreɪt] 📢 UK📢 US
vt.发明，创造；虚构；
vi.脸红，惭愧；变红；害臊，怕羞； n.脸红，红色；<古>一见，一瞥；
vt.装饰；点缀；粉刷；授予（某人）勋章； vi.装饰；布置；
n.命运，宿命；灾难，死亡；命中注定的事（尤指坏事）； v.注定；
(1) carpenter: Well, I knew some idiot would ask me. So I measured it! (2) The carpenter glued two pieces of wood together. (3) The carpenter ran his rule over the shed and sized it up at once.