Just keep with it, and by using trial and error, you will find your own way to save!
继续坚持这样做下去,并通过尝试和失败,你会找到属于你自己的节俭方法!
It pays to keep up to date with your work.
工作能跟上时代是有利的。
It is difficult to keep up with the rapid pace of change.
跟上迅速的变化是很困难的。
And the rate of change means it's very difficult for the classical educational programs to keep up with the demand that's out there in the marketplace."
VOA: special.2011.01.24
That is metallic sodium that would keep in kerosene so it doesn't react with the oxygen in the air.
金属钠应该保存在没有中,这样它就不会和空气中的氧气反应了。
Now I suppose it's my reluctance to get into the intricacies of questions having to do with applied theory that makes me prefer to keep it simple.
我不愿意在,应用理论上纠结,因此想把它简单化。
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