His mind, as though shying away from something, seemed unable to concentrate.

他的脑子有些想要躲开什么似的不能集中思考.

英汉文学

Finally, unable to concentrate any longer, she fell to doodling on the writing pad.

末后, 她不再去苦思索了, 机械地在那张信笺上画了无数的小圆圈.

子夜部分

When we sleep, when, because they are unable to concentrate, work or school performance be poor.

当我们睡眠不足时, 因为不能专心, 工作或学校的表现就会不佳.

互联网

Too little sleep leaves us drowsy and unable to concentrate the next day.

睡眠过少使我们次日感到困倦并不能集中精力.

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