介绍:
1.Foe敌人,仇敌；反对者;危害物
Someone’s foe is one’s enemy.
Trouble is a friend but trouble is a foe.烦恼是朋友但也是仇敌。
A friend is a friend; A foe is a foe.朋友是朋友，敌人是敌人。
2.Fail sb辜负某人，辜负某人的希望
Live up to sb达到某人的标准；不辜负某人，
live up to one’s expectations.
I wasn’t meant to fail you.
I didn’t want to fail you.
3. Wear thin逐渐消失；磨薄；穿薄；
Master: Have you finished sight-seeing?
Po: Sorry, I should have come to you first.
Master: My patience is wearing thin.
Thin瘦和薄的意思，反义词thick
Wear在这里的意思是某一样东西在一段时间里，它的功能和价值在逐步降低，也就是中文里说的损耗。这可以指具体的东西，也可以用在其他方面。
His patience began to wear thin during the long wait.
在长期的等待中,他的耐性慢慢消失了.
Joe, remember that money you borrowed six months ago. You told me you'd pay it back in 30 days. But you keep finding reasons not to return it. Now I really need it back, and I must say that all your excuses for delay are beginning to wear thin.
Joe, 记得你六个月前问我借的钱吧。当时你说你一定会在一个月后还给我。可是你找出种种理由不还钱。现在，我真的要用这些钱了。我得告诉你，你为了推迟还钱而提出的种种借口现在已经没什么作用了。
4. wear out用坏；穿破；（使）筋疲力尽；耗尽
. It is better to wear out than rust out. 与其懒死,不如累死.
Cheap shoes soon wear out. 便宜鞋子不耐穿.
The batteries are wearing out电池快没电了
The young people run around kicking a ball, wearing themselves out...
年轻人跑来跑去踢着球，把自己弄得精疲力竭
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