I never expected the shoes to be worn out so soon.

我从来没想到鞋子这么快就穿破了。

I wish someone would invent clothing that can't be worn out.

我希望有人发明一种穿不破的衣服。

Those who return evil for good may expect their neighbor's pity to be worn out at last.

以怨报德的人，最后将失去邻居的怜悯。

As a result, some switching devices would be worn out earlier because of the unbalanced utilization at low modulation indices.

当调制系数较低时，会造成开关器件利用率不均匀，导致部分器件提前损坏。

Angel is the only word in the language which cannot be worn out. No other word could resist the merciless use which lovers make of it.

“天使”是语言中唯一屡用不厌的字眼，所有其他的字都被谈恋爱的人重复得无法再用了。