wear down是什么意思？

wear down的音标：wear down的英式发音音标为：[wɛə daun]wear down的美式发音音标为：[wɛr daʊn]...

They perceived that the enemy was trying to wear down their resistance.他们明白敌人是想用消耗的办法来制服他们的抵抗.Pipe smokers sometimes wear down the tips of their teeth where they grip their pipes.抽烟斗的人用牙齿咬住烟斗，有时会把齿尖磨平。The machines start ...