例句
His restlessness made it difficult for him to concentrate.
他的心神不定使他难以集中精力。
She felt restless and unable to sleep.
她感到焦躁不安，无法入睡。
His restlessness made it difficult for him to concentrate.
他的心神不定使他难以集中精力。
She felt restless and unable to sleep.
她感到焦躁不安，无法入睡。