(1) I don't have much contact with my uncle. (2) There is little contact between the two organizations. (3) Have you kept in contact with any of your friends from college (= do you still see them or speak or write to them) ?
(1) He has high moral principles. (2) I refuse to lie about it; it's against my principles . (3) Stick to your principles and tell him you won't do it.
(1) The child stumbled and fell. (2) I stumbled over a rock. (3) We were stumbling around in the dark looking for a candle.
stumble [ˈstʌmbl] 📢 UK📢 US
vi.跌跌撞撞地走，蹒跚；结巴；弄错，失足；偶然碰见； n.绊脚，失足；差错，失误；过失，失败；
n.议会，国会；
adj.不诚实的，不老实的；不正直的；狡猾的，阴险的；不可靠的；
n.光荣，荣誉；壮观，壮丽；（对上帝的）赞颂；非常美的事物； vi.得意，自豪；骄傲；
(1) one of America's most populous states (2) Indonesia, with 216 million people, is the fourth most populous country in the world. (3) China is the most populous country in the world.
populous [ˈpɒpjələs] 📢 UK📢 US
adj.人口众多的；人口稠密的；
n.说话方式；表达；说话；发言；
adj.成熟的；醇美可口的；老练的；时机成熟的； v.〈诗〉同“ripen“；
n.贫穷；缺乏，不足；贫瘠，不毛；低劣；
(1) a foam mattress (2) foam packaging (3) a glass of beer with a good head of foam
(1) Many people do not like the idea of experiments on animals. (2) the country's brief experiment in democracy (3) I've never cooked this before so it's an experiment.
experiment [ɪkˈsperɪmənt] 📢 UK📢 US
n.堡垒，要塞； vt.设置要塞；用要塞防守；
vt.建立，创建；确立或使安全；使被安排好；使成为；
n.百万富翁；大富翁；大财主；有钱人； adj.100万以上人口的；
n.实验，试验；尝试； vi.做实验，进行试验；尝试；
(1) This beautiful old building has been restored to its former glory . (2) the former world champion (3) my former boss/colleague/wife
(1) The two teams have always been rivals. (2) The Japanese are our biggest economic rivals. (3) This latest design has no rivals (= it is easily the best design available) .
rival [ˈraɪvl] 📢 UK📢 US
vt.授权，批准，委托；
n.誓言；郑重宣布； vt.& vi.起誓，发誓；郑重宣告；
vi.依靠，倚赖，仗恃；信任，信赖；
n.对手；竞争者； vt.与…竞争；比得上某人； vi.竞争； adj.竞争的；
(1) to have a passionate nature (2) a passionate interest in music (3) a passionate defender of civil liberties
(1) The museum houses several of his Cubist masterpieces. (2) Her work is a masterpiece of (= an excellent example of) simplicity. (3) His book, I must add, is a masterpiece.
(1) It's like a furnace (= very hot) in here! (2) How can we walk? It's a furnace out there. (3) At the same time , the experimental r 6 sults with the blackbody furnace in Netherlands Measurements Institute ( NMi ) are also presented.
furnace [ˈfə:nis] 📢 UK📢 US
vt.陈设，布置；提供，供应；装修（房屋）；
n.熔炉，火炉；极热的地方；严峻的考验或磨难；
n.生物学；生物；
vt.使惊恐，使恐慌；吓走，赶走； vi.害怕，惊恐；
(1) Drivers are advised to seek alternative routes. (2) They sought in vain for somewhere to shelter. (3) to seek funding for a project
(1) The latter point is the most important. (2) the latter half of the year (3) He presented two solutions. The latter seems much better.
latter [ˈlætə(r)] 📢 UK📢 US
adj.后者的；末了的；较后的；
vt.装饰；点缀；粉刷；授予（某人）勋章； vi.装饰；布置；
n.未婚女人，老处女；
n.决心；决定，确定；[物]测定，计算；
(1) We look for applicants who are numerate, computer-literate and energetic self-starters. (2) They look for foods that are low in calories. (3) We all need to look for ways to reduce our carbon footprint.
(1) I can't go into details now; it would take too long. (2) The brochure details all the hotels in the area and their facilities. (3) Several of the men were detailed to form a search party.
(1) There is one particular patient I'd like you to see. (2) Is there a particular type of book he enjoys? (3) We must pay particular attention to this point.
(1) a joint account (= a bank account in the name of more than one person, for example a husband and wife) (2) The report was a joint effort (= we worked on it together) . (3) They finished in joint first place.
(1) If the warranty is limited, the terms may entitle you to a replacement or refund. (2) Golden parachutes entitle them to a full year's salary if they get booted out of the company. (3) How does one entitle the queen when speaking directly to her?
(1) The owner of the store was sweeping his floor when I walked in... (2) She was in the kitchen sweeping crumbs into a dust pan... (3) I swept rainwater off the flat top of a gravestone...
(1) boundary changes/disputes (2) The fence marks the boundary between my property and hers. (3) Scientists continue to push back the boundaries of human knowledge.
(1) The consequences will be very grave if nothing is done. (2) The police have expressed grave concern about the missing child's safety. (3) My father would turn in his grave if he knew.