Pipe smokers sometimes wear down the tips of their teeth where they grip their pipes. [VERB PREP. noun]

抽烟斗的人用牙齿咬住烟斗，有时会把齿尖磨平。

The machines start to wear down, they don't make as many nuts and bolts as they used to. [VERB PREP.]

机器开始出现磨损，螺母和螺钉的产量不如从前了。

Elephants wear the tusk down faster than they can grow it. [VERB noun PREP.]

象牙磨损的速度快于生长的速度。

None can match your sheer willpower and persistence in wearing down the opposition.

在消磨反对派的意志方面，没有人能比得上你那惊人的意志力和不懈的坚持。

They hoped the waiting and the uncertainty would wear down my resistance. [VERB PREP. noun]

他们希望拖延搁置会瓦解我的抵抗。

He believed that he could wear her down if he only asked often enough. [VERB noun PREP.]

他相信只要总缠着她问她就会松口。