英语词汇simple machine的意思、用法及释义-英汉双解词典

单词	simple machine
释义	simple machine any simple instrument used as (part of) a machine, eg a wheel, lever, pulley 简单机械（如轮、杠杆、滑轮）.
随便看	barley barleycorn barley sugar barley water barmaid barman bar mitzvah barmy barn barnacle barn dance barn-owl barnstorm barnstormer barnyard barometer barometric baron baroness baronet baronetcy baronial baroque barque barrack-

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