concentrate例句
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。
We must
concentrate our energies on treating addiction first.
我们必须首先集中精力治疗毒瘾。
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。