work on . try to influence or convince 企图影响或说服
I can't go abroad this summer because I haven't got enough money，but perhaps I can work on father to give me a loan．今年夏天我不能出国了，因为我的钱不够，不过或许我可以说服我父亲借我一笔钱。
Senator Smith worked on the other committee members to vote for the bill．史密斯参议员说服委员会的其他委员投票赞成该提案。
work on . be engaged in ；continue doing 从事；忙于；继续工作
She is working on a new dictionary．她一直在忙着编写一本新词典。
How can you work on so Long without a rest? 你怎么能连续工作这么久而不休息呢?
work on . produce an effect on 对…产生影响
The medicine the doctor prescribed worked on his illness．医生开的那种药对他的病有效果。
work out . plan；develop；devise 计划；发展；设计
We must work out a plan acceptable to all as quickly as we can．我们必须尽快订出一个大家都能接受的计划。
They formed a special group to work out measures for labor protection．他们成立了一个特别小组来制定劳保措施。
work out . arrive at by calculation 计算；估算
I'll give you five minutes to work out this problem．我给你五分钟来解答这个题目。
Have you worked out what I owe you yet? 你把我欠你的钱算出来了吗?
work out . understand the nature of 理解；看出；判断
It is a very strange situation．I can't work it out 这是一种奇怪的情况，我弄不清是怎么回事。
I can't work out the meaning of this poem．我弄不懂这首诗的含义。
For as long as I've known him，I've never been able to work him out．我虽然认识他这么久了，但一直摸不透他。
work out . use up；exhaust through exploitation 用尽；枯竭；采掘完
The old mine is completely worked out．那座老矿山已经被开采尽了。
The professor never seems to be worked out．这位教授好象有用不完的精力似的。
She was worked out，having done the experiment for seven hours running．她连续做了七个小时的实验，已经精疲力竭了。
work out . solve；bring about by work，effort or action；prove effective，practicable or suitable 解决；通过努力得到圆满解决；证明有效或实用
I can't work this puzzle out．这个难题我解决不了。
Don't despair！Everything will work out all right in the end．别灰心！一切最终都会圆满解决的。
The system seems to be working out well．这个制度似乎很有效。
How the experiment will eventually work out only time can tell．试验最后结果如何，只有让时间来说话。
work out . amount to a total or calculated figure 总计
The car repairs work out at fifty-seven pounds．汽车修理费总共是五十七镑。
The cost works out at eight dollars each．每人的费用是八美元。
work out . exercise 进行锻炼
The athletes of our university work out at the gym for two hours every day．我们学校的运动员每天在体育馆锻炼两小时。
work over . study or examine thoroughly 仔细检查；钻研
For the term paper I worked over thirty volumes of American history．为了写学期论文，我钻研了三十卷美国史书。
I spent some time in working over those statistic figures．我花了一些时间去仔细检查那些统计数字。
work over . do again or anew 重新加工；翻新
Every time I work the sum over，I get a different answer．每次我复查这笔帐，得出的数字都不一样。
We are going to work over the old furniture．我们打算翻新旧家具。
work over . beat somebody up very roughly （in order to intimidate him or extort payment，）痛打（为了威胁或勒索）
They threatened to work him over until he talked．他们威胁说要打到他开口为止。
work up . build up gradually by effort，industry，；develop steadily 通过努力、勤奋逐步建立；逐渐发展起来
Smith has worked the firm up from almost nothing．史密斯几乎是白手起家，搞起了这家公司。
It took us several years to work up a market for this product．我们花了好几年时间才为这个产品打开了销路。
The business was almost bankrupt when he took it over but within a few years he had worked it up to be a prosperous concern．他刚接管这个企业时，企业已濒临破产，但经过几年的努力，他渐渐地把它发展成为一个欣欣向荣的企业。
work up . rise to a higher position；advance 晋级；步步高升
If you have what it takes，you can work up to the presidency of the company．如果你有本事，你可以升到公司总裁的地位。
work up . stir up；rouse；excite 鼓动起来，激起；使激动
I can't work up any enthusiasm for the project，I'm afraid．我恐怕对这项计划鼓不起什么热情。
Let's go out for a walk to work up an appetite．我们出去走走吧，这样会增加食欲。
Her words worked him up into a rage．她的话使他大发雷霆。
work up . make into something ； elaborately prepare 精心做成；制订
The craftsman is working up the mass of clay into a toy figure．工 匠正把一团泥捏成一个玩具。
Work these facts up into an article for a weekly journal．把这些事实整理成一篇文章，在周刊上发表
work up . increase in numbers or strength；improve in efficiency 增加；加强；提高效率
You can surely work up your speed if you practice．只要你坚持练习，就一定能提高速度。
worm out . find out by devious means 用不正当的手段探出
They have wormed out all the information out of him．他们已经从他那里骗取了所有的情报。
worry out . work out with patience and effort 耐心而努力地解决；绞尽脑汁解决
Don't bother about it；I'll worry out the answer．别为这事操心了，我会想出解决办法的。
worry out . obtain by worrying or distressing 费尽心机弄到手；缠着不放要得到某物
They intend to worry the money out of you．他们打算纠缠你要钱。