lack n.可数,缺乏 lack of sth (物质上的,具体的) a lack of sth
a lack of money 缺乏资金
There was no lack of wolunteers. 志愿者不乏其人。
lack vt. 缺乏,不足,短缺 lack sth
He lacks confidence. 他缺乏信心。
lacking adj 缺乏的 be lacking in (某一方面,抽象的)
She's not usually lacking in confidence. 她平时并不缺乏信心。
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