英语词汇“service line”是什么意思，“service line”的读音、用法及例句翻译-烛光网

词汇	service line
释义	service linen.Sports（名词）【体育运动】 A boundary line, as in tennis or handball, that must not be overstepped in serving.发球线：发球时不能超过的界线，如在网球或手球中
随便看	need need needed needful needfuls Needham needier neediest needing needle needle needlecraft needled needlefish needlefishes needle grass needlepoint needles needless needle valve needlewoman needlewomen needlework needling needn't

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