lack 的用法a lack of、be lacking in和lack for用法上有什么区别吗?尤其是lack of

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  • n.

    (常与of连用)缺乏;需要

    There is no lack of vegetable.

    蔬菜不缺.

    The lack of rain aggravated the serious lack of food.

    "由于干旱少雨,缺粮问题更加严重."

    vt.是及物动词,直接接所缺乏的东西就可以:

    缺乏;不足;没有

    He lacks courage.

    他缺乏勇气.

    Their actions lack consistency; they say one thing and do another.

    "他们言行不一,说的是一回事,做的又是另一回事."

    These photographs lack definition.You'd better have them taken again.

    "这些照片不够清晰,你最好得重拍."

    如果lack作动词时后面加in则必须是be lacking in这种形式:

    Is she lacking in courage?

    她缺乏勇气吗?

    如果lack作动词时后面加for则通常用于否定句:

    He lacks for nothing.