Ideally you should keep a tooth brush in your pocket and use it immediately after you have finished eating.

理想情况下，你应该在口袋里放一把牙刷，吃完后立即使用。

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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。

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The UT team put special sticks inside the soil to capture the energy and keep it in the lamp's batteries for later use.

UT 团队在土壤中放置了特殊的棍子来获取能量，并将其保存在灯的电池中以供以后使用。

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Many people use E-mail,blogs,text messages and social Web sites like Facebook to keep in touch with their friends.

VOA: special.2009.02.06

So what happens is, Freud described a lot of normal life in terms of different ways we use to keep that horrible stuff from the id making its way to consciousness.

弗洛伊德描述了，很多我们会在日常生活中使用的方法,我们用这些方法,来阻止来自本我的原始欲望,进入到意识之中。

耶鲁公开课 - 心理学导论课程节选

With Facebook, I tend to use it to keep in contact with old friends

我用Facebook和老朋友保持联系，

用社交网站找到的人 - SpeakingMax英语口语达人

This will include scanning and speech synthesiser equipment and hand-held spell checkers - and in some cases, pupils will be able to keep equipment for use in work when they leave school.

BBC: Hi-tech help for special needs

One in three youngsters added that they use phones to keep in touch with people their parents did not want them to contact.

BBC: NEWS | Business | Youngsters 'reliant on mobiles'

But dozens of men and women in Congress have discovered that they can use Twitter to keep in touch.

ECONOMIST: An internet craze reaches Congress