挫败的英文：
thwart
defeat
foil (someone's plans, etc)

参考例句：

To frustrate or thwart.
使受挫；使挫败

thwart the enemy's conspiracy
挫败敌人的阴谋

Nothing daunted the ardour of the merchant navy
任何困难都不能挫败商船船员的锐气。

He crouched there for a long time before he hit upon a plan to defeat his antagonist.
他蹲在那里很长一段时间后，突然想出了一个挫败他对手的计划。

The self-abasement of his companion completely got the better of the passing feeling of the personal vanity
伙伴的一番自谦的话挫败了他一时的虚荣心，使他无词可答了。

To disappoint or defeat.
使…失望或挫败

Knock a person off his perch
挫败,毁掉

He dished his opponents.
他挫败了对手。

His efforts were defeated by the forces of reaction.
他的努力被反动势力挫败。

The conspirators will be foiled in their intrigue.
阴谋家的阴谋将被挫败。

thwart是什么意思：
v. 阻挠，挫败
adj. 横着的
n. 横座板

To frustrate or thwart.
使受挫；使挫败

To put obstacles in the way of; check or thwart.
阻碍，阻挠在路上放障碍物；阻碍或使受挫

Her ambition to become an artist was thwarted by failing eyesight.
她想成为艺术家的梦想由于视力衰减而破灭了。

defeat是什么意思：
v. 击败；使困惑；使失败，阻挠，挫败
n. 失败；击败，战胜

Victory of defeat
不成功,便失败

Their defeat was not inevitable.
他们被击败是不是不可避免的。

sting of defeat
失败的痛苦

foil是什么意思：
n. 箔，金属薄片；烘托
v. 衬托；挫败

The conspirators will be foiled in their intrigue.
阴谋家的阴谋将被挫败。

To coat(glass, for example)with metal foil.
以箔包用金属箔覆盖（如玻璃）

Chocolate is wrapped in foil to keep it fresh.
为保新鲜，巧克力用箔纸包起来。