After all, everyone is responsible for building and keeping it.
毕竟,每个人都有责任建立和维护它。
Losing weight is difficult, and keeping it off may be even harder.
减轻体重难,保持就更难。
KF: Why do some people have such a hard time losing weight and keeping it off?
KF:为什么人们减肥、保持苗条总是这么艰难?
The company says it is simply keeping a database of Wi-Fi hotspots and cell phone towers near the user's location.
VOA: special.2011.05.02
Isn't it difficult being a mother and a professor at the same time and keeping a balance between the two?
同时做母亲和教授是不是很困难呢?两者之间取得平衡不容易吧?
But the United States has to free trade, and in that sense, it's likely to lean on the direction of keeping it open, the problems will arise if India does not reciprocate.
但美国非常坚决地,自由贸易,因而,其政策会倾向于,保持对外开放,如果印度不接受,这个机会营造互惠便会产生矛盾。
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