英语词汇knock up怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	knock up
释义	knock up PRACTISE v adv [I] (in games of tennis) to practise before beginning a game, by hitting the ball to each other （网球等运动中）赛前练习 The players have a couple of minutes to knock up before the match starts. 开赛前运动员有几分钟练球。
随便看	break break break break break break break break break breakable breakage breakaway break-dancing breakdown breakdown breakdown -breaker -breaker -breaker -breaker breaker breaker breakfast breakfast break in

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