Paul earns his keep by helping his elderly landlord.
保罗靠帮助他年迈的房东干活来维持生计。
She tries to keep fit by jogging every day.
她每天慢跑以保持健康。
By the way, this will probably keep happening each time you travel internationally.
顺便说一下，这可能会在你每次出国旅行时继续发生。
Try to keep fit and healthy by exercising every day.
试着通过每天锻炼来保持健康。
Today, many businesses, organizations and families try to keep the traditional spirit of Boxing Day alive by giving away money to Food Banks, providing gifts for the poor, or helping families in need.
如今，许多企业、组织和家庭都试图通过向食品银行捐款、向穷人捐赠礼物或帮助有需要的家庭来保持节礼日的传统精神。
They planned to keep the budget low by living on boiled noodles.
他们以煮面条为食，以保持低预算。
Invest in smaller bottles and use the bathroom supplies, such as shampoo, soap, mouthwash, etc., provided by the hotel to keep your toiletry case light.
购买小瓶包装的，并尽量使用旅馆提供的盥洗用品：像洗发水、肥皂、漱口水、吹风机等，来让你的洗漱包轻便。
Even if the new population is of a different species, it can approximately fill the niche vacated by the extinct population and keep the food web intact.
即使新的种群属于不同物种，它也可以大致填补已灭绝种群空出的生态位，保持食物网的完整。
We want to divide all of this by our wavelength, and to keep our units the same we'll do meters.
我们想用波长除以所有这些，而且为了保持单位统一我们采用米为单位。
They are also attempting to keep the car buyer as a long-term customer by offering after-sales service.
他们也正在努力，通过售后服务使这位汽车买家成为他们的长期客户。
Keep applying and by the law of averages you'll get a job sooner or later.
继续申请吧，根据平均律你迟早会找到工作的。
Rural schools were hamstrung by their inability to attract and keep experienced staff.
农村学校因不能吸引并留住有经验的教师而难以为继。
You can keep score of your baby's movements before birth by recording them on a kick chart.
你可以在胎动图表上记下分娩前胎儿的活动次数。
They are officially classified as harmful and farmers try to keep their numbers down by shooting or poisoning them.
它们被正式地列为有害动物，农民们试图通过射杀或投毒来减少它们的数量。
Despite how these employees feel, it's obviously important for their manager to nonetheless find out how to keep them motivated. And, by virtue of that heightened motivation, to perform well.
不管这些员工的感受如何，对他们的经理来说，找到保持他们积极性的方法，并且通过增强积极性来让他们好好工作显然才是重要的。
They keep the society peaceful by setting up courts to sentence the criminals to some kinds of punishments.
他们通过设立法庭对罪犯进行判刑，由此来维护社会和平。
During the past generation, the American middle-class family that once could count on hard work and fair play to keep itself financially secure has been transformed by economic risk and new realities.
在过去的几十年里，美国的中产阶级家庭曾经依靠努力工作和公平竞争来保证自己的财务安全，但现在的经济风险和新出现的情况已经改变了这种状况。
When a city's population grows by 5% a year, it is difficult to keep up.
当一个城市的人口以每年5%的速度增长时，基础设施很难跟得上。
Having one's own bedroom even as an infant, fixes in a person the notion that she is entitled to a place of her own where she can be by herself, and keep her possessions.
（美国人）甚至在婴儿时期就拥有自己的卧室，这会使人产生这样一种观念：她有权拥有一个属于她自己的地方，在那里她可以独处、可以保存她的物品。
The myth is also perpetuated by the compensation-consulting industry, which has its own incentives to keep such myths alive.
薪酬咨询行业也让这种神话永久化，这个行业有自己的动机来维持这种神话的活力。
Though you've got to get them to do homework, by helping too much, or even examining answers too carefully, you may keep them from doing it by themselves.
尽管你已经让他们做了作业，但要是给他们太多帮助，或是检查答案过于仔细，可能会让他们懒于独立完成作业。
I always keep a pad of paper by the phone.
我总是在电话旁放一叠便条纸。
Keep in mind the price offered by the seller at the beginning is usually at least 40% over the generally reasonable price.
请牢记卖方最初的报价通常比一般合理的价格至少高出40%
Iraqi lawmakers are expected to vote on a security agreement by Wednesday, which will keep the US troops here until the end of 2011, the parliament's speaker said yesterday.
议会发言人昨日表示，伊拉克立法者预计将在周三之前就一项安全协议进行投票，该协议将使美军在伊拉克驻扎至2011年底。
At the esoteric edge of the timekeeper's craft, they are too wobbly to keep time by themselves.
在这个原子钟的装置里，它们还是太不稳定了，不能靠自身确保时间。
One way we keep track of the radiation budget is by looking at the albedo of the different surfaces on the planet.
我们记录辐射收支的一种方法是观察地球上不同表面的反照率。
I'll keep strong by playing my favorite sport, tennis, every day.
我将每天通过做我最喜欢的运动来保持强壮，也就是打网球。
I keep cool by staying in the shade and not moving much.
由于我待在树荫下，不多走动，所以不热。
I keep cool by staying in the shade and not moving much.
由于我待在树荫下，不多走动，所以不热。
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