also wash-board, clothes-cleaning device, 1882, from wash (v.) + board (n.1). As a percussion instrument, attested from 1925; in reference to abdominal muscles, recorded from 1950 in boxing jargon.
双语例句
1. A kind of washboard - like crack on steel plate surface is introduced.
文章介绍钢板表面产生的一种搓板 状 裂纹.
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2. Say, put washboard top of head, two arms are smooth extend, double leg is diverged.
说罢, 将洗衣板放在头顶, 两臂平伸, 双腿叉开.
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3. Regulation be production caused by the improper paperboard foaming washboard or radio frequent.
