应该是想要例句吧！
①keep sth + adj.
例1、A policeman's job is to keep the city safe.
例2、He made a fire to keep the room warm.
②keep sb + adj.
例3、An ice-cream can keep the little happy for a whole day.
③keep sb + doing
例4、You have kept me waiting for an hour!
keep（原形）
kept（过去式）
kept（过去分词）
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