commit to . send把…交托给

The girl was committed to the care of her grandmother．那个女孩被托付给祖母照看。

The woman was committed to a hospital for mad people．那妇女被送进了疯人院。

commit to .entrust把…付诸于

She committed the evil books to the flames．她把那些坏书付之一炬。

commit to .sentence somebody to把…判处

They committed the criminal to prison．他们把罪犯投进了监狱。

communicate with . send a message to；share or exchange opinions，news，information，etc．与…交往；与…保持通讯联系

The army fighting on the battlefield communicated with the headquarters every minute．作战部队同司令部时刻保持着通讯联系。

communicate with .join；connect与…相联

Our school library communicates with a park by means of a gate．我们的校图书馆同一个公园有门相通。

comparable with . comparable to . worthy of comparison；capable of bearing comparison with可与…相比的

This mountain is not comparable with the Yellow Mountain in Anhui Province．这座山同安徽的黄山是不能比的。

compare to .regard as similar or equal to；be likened to把…比作；与…相当（常就两者之间相似的方面进行比拟）

Life is often compared to a voyage．人生常被比作航程。

Books are often compared to friends．书籍常常被比喻为朋友。

We can compare her poetry to the greatest poems of the present century．我们可以把她的诗同本世纪最伟大的诗篇相提并论。

compare with . examine to find things that are the same or different比较（异或同）；同类之间进行具体的比较；对照

He can not be compared with Shakespeare as a writer of tragedies．作为一个悲剧作家，他无法和莎士比亚相比。

You can compare your writing with the model writing on page 85．你可以把自己的作文同第85页的范文作一比较。

If you compare this with that，you'll find they are very much alike．如果把这个与那个比较一下，你会发现它们非常相似。

compete with . be in competition with；enter into contest with与…竞争

This firm is too small to compete with the transnational corporation．这家公司太小了，竞争不过跨国公司。

Now China can compete with other countries．现在中国可以和其它国家竞争。

complain about . find fault with；utter something unfavourable about抱怨；埋怨

The students are always complaining about the bad food．学生总是抱怨伙食不好。

complain of .state that one is suffering from 诉说；诉苦；抱怨

I have nothing to complain of．我没有什么好埋怨的。

Blake is complaining of a headache again．布莱克说自己又患头痛病了。

The patient complained of abdominal pain．病人主诉腹痛。

Workers complain to the boss of their overwork．因为工作过度，工人向老板诉苦。

The goods complained of were immediately exchanged by the manager．经理立即把买主抱怨的商品换了。

comply with . be faithful to；obey；abide by 遵照；服从

If you join the society，you must comply with its rules．如果参加这个协会，就必须遵守其规章制度。

She promised to comply with my request．她答应按我的要求办。

We'll comply with what's been agreed upon．我们将遵照已经商定的协议办。

composed of .made up of由…组成；包含

The scientific research group is composed of ten experts．这个科研小组由十位专家组成。

The company is composed of nine subcompanies．这家公司有九个分公司。

conceal from . hide from；keep secret from隐藏；隐瞒

You can't conceal your guilt from the police．你不能向警察隐瞒你的罪行。

conceive of imagine；form the idea of设想；构想

It's impossible to conceive of anything better．想象不出更好的东西了。

The modern child finds it difficult to conceive of a time when there was no radio or TV．现代的儿童觉得很难想象过去没有收音机和电视机的时代是什么样子。

It is difficult to conceive of his doing such a thing．很难想象他会干出这样的事情。

conceive of consider考虑

Her father wouldn't conceive of her going to London at her age．她父亲不愿意考虑她这个年龄就去伦敦。

We refuse to conceive of such a solution to our problem．我们拒绝考虑采取那样的办法来解决我们的问题。

concentrate on . concentrate upon . direct one's thought to；fix one's attention on把思想集中于；全神贯注于

We must concentrate on developing our foreign trade and commerce．我们必须把注意力集中在发展我们的对外贸易上。

Please be quiet，the children are concentrating on their homework．请安静，孩子们正在专心做家庭作业。

If you don't concentrate more on your work you'll be dismissed．假如你不更加专心地工作，你将被解雇。

concern oneself about . concern oneself in . concern oneself with . give one's attention to；worry about关心；关怀；担忧

We must concern ourselves with state affairs．我们必须关心国家大事。

Don't concern yourself about his opinion．不要管他的意见。

concerned about . concerned over . concerned for . giving one's attention to；worrying about关心；担心；挂念

He is very much concerned about his son's future．他非常关心儿子的前途。

He was genuinely concerned over our financial difficulties．他真心实意地关心我们的经济困难。

They are all concerned for the boy's safety．他们都很担心孩子的安全。