wear(sth)out
—phrasal verbwithwearverbuk/weər/us/wer/wore|worn
B1
to use something so much that it isdamagedand cannot be used any more, or tobecomedamagedin this way
用坏；磨坏
Movingpartsinengineswearout much morequicklythanstationaryparts.引擎中的运动部件比固定部件磨损得要快得多。