hear from（及物，不可分）从（某人）得到消息（常指信件）
Have you heard from him recently？你最近接到过他的信吗？
It has been long since I heard from her last.自从上次得到她的音信后，已经好久没有她的消息了。
I often hear from my friends in my hometown.我经常接到家乡朋友们的信。
He has not been heard from for a long time.好久没有他的音信。
hear of（及物，不可分）获悉，听说
I've never heard of any mother so cruel as to kill her own baby.我从未听说过竟残忍到杀死亲生婴儿的母亲。
He went abroad to study and hasn't been heard of since.他出国留学，从此杳无音信。
help out（不及物）帮助，帮助某人渡过难关
Many young people help out in their parents'shops.许多年轻人在他们的父母开的商店里帮忙。
If you're in urgent need，I'll try my best to help out.如果你有急需，我将尽力帮助。
Thank you very much for helping out when I was in deep difficulties.多谢你在我极度困难期间给予的帮助。
help...out（及物，必分）帮助，帮助（某人渡过难关）
I don't know how to translate this passage，please help me out.我不知道这一段怎么翻译，请帮助我解决。
If you're in urgent need，I'll try my best to help you out.如果你有急需，我将尽力帮助你渡过难关。
Can you help me out with my English homework？你能帮我做英语作业吗？
help...to...（及物，必分）给（某人）取（食物、饮料等）
May I help you to some chocolates？我给你取点巧克力糖好吗？
I helped myself to two glasses of beer.我自己倒了两杯啤酒喝。
Help yourself to the dishes.请随便吃菜！
Please help your friend to a glass of Coca-Cola.请给你的朋友取一杯可口可乐。
hire out1（及物，不可分）出租
They hire out taxis by the hour.他们按钟点出租汽车。
Have you thought of hiring out your vacancy to make money？你考虑过把空房出租赚钱吗？
hire out2（不及物）被雇用
Stow hires out as a house painter in summer.斯托在夏天受雇为油漆工。
Some young women hired out as accountants in private firms.有些青年妇女受雇在私人公司当会计。
hit on ［upon］1（及物，不可分）忽然想出
None of them hit on such a wonderful idea.他们谁也没有想出这样一个绝妙的主意。
After cudgeling his brains，he hit on an idea.他绞尽了脑汁，忽然想出一个主意来。
Having suffered several setbacks，we hit on this plan.遭到几次挫折后，我们无意中想出这个方案。
hit on ［upon］2（及物，不可分）侥幸发现
I hit on a valuable stamp.我侥幸发现一张珍贵邮票。
I hit on a dictionary of mine missing several years ago.我幸亏找到了几年前不见了的一本词典。
Scientists hit on a specific therapy for curing pneumonia.科学家们幸而找到一种治肺炎的特效疗法。
hit out at ［against］（及物，不可分）（通过新闻媒体）猛烈攻击
The speaker hit out at the conservative government's policies.演讲者猛烈抨击保守党政府的政策。
The masses hit out at the venal officials'corrupt behaviour.群众猛烈抨击贪官污吏的腐败行为。
hold back1（及物，可分）阻止
No force of reaction can hold back the progress of human history.任何反动势力都不能阻止人类历史的前进。
She had become so irritated that I couldn't hold her back.她十分恼火，我没法阻止她。
His poor education is holding him back.缺乏教养阻碍着他的进步。
hold back2（及物，可分）控制
At the sight of what had happened I could no longer hold myself back.一看见发生的事，我再也控制不住自己的感情。
I failed to hold myself back and hit him.我失去自制力，揍了他。
I tried my best to hold back my anger when he called me names.他开口骂我，我尽力压住了怒火。
hold back3（及物，可分）隐瞒
Don't hold the truth back.不要隐瞒真相。
We held back the fact from you because of your poor health.我们把事情真相瞒着你，因为你那时身体不好。
They held back all the reports about that coup.他们扣下了关于那次政变的全部报道。
hold down1（及物，可分）保住（工作等）
He was in trouble at first，but he succeeded in holding his job down.他起初有麻烦，但他保住了工作。
His frequent illness made it difficult for him to hold down his health.经常生病使他难于维持健康。
hold down2（及物，可分）压制，镇压
The Government took drastic measures to hold the prices down.为了制止物价上涨，政府采取了严厉措施。
They held down a rising of the people with the help of the army.他们借助于军队镇压人民的造反。
I could hardly hold down my laughter.我忍不住要笑。
hold forth on（及物，不可分）夸夸其谈地讲
Peter introduced a teacher of physics，and held forth at great length on his prowess，personality，and intelligence.彼得向大家引见了一位物理教师，滔滔不绝地说了半天他的非凡技能、人品和聪明才智。
The candidate was holding forth on the mistakes of his opponent.这位候选人正在滔滔不绝地谈论对手的过失。
He held forth on his opinions about physical culture at the meeting.他在会上详细地谈了他对体育问题的见解。
hold off1（及物，可分）与…保持距离
The campers held off the wolves with burning sticks.露营者点燃树枝使狼群不敢接近。
Hold off the grass！勿踏草地！
Hold the train off！It's moving.离火车远点儿，它快开了。
In dealing with girls，he always holds them off.在同女孩子来往时他总是保持相当距离。
hold off2（不及物）延迟
Will the rain hold off until the game is over？雨会不会拖到比赛后才下呢？
Don't hold off；act today！别拖延，今天就行动！
They're trying to hold off until help arrives.他们正设法拖延以等待救援。
hold off3（及物，不可分）延迟
The bad weather held off his arrival.恶劣天气使他延期到达。
The jury held off giving a decision until hearing more evidence.陪审团把作出判决的时间推迟到了听取更多的证据以后。