concentrate的英语例句
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We must concentrate our energies on treating addiction first.
我们必须首先集中精力治疗毒瘾。
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They will concentrate on teaching the basics of reading, writing and arithmetic.
他们将集中教授阅读、写作和算术基础知识。
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A term in prison will concentrate his mind wonderfully.
一想到要被判刑,他的头脑就会变得非常清醒。
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