杀手锏的英文：
sudden thrust of the mace--one's trump or master card

sudden是什么意思：
adj. 突然的，意外的；快速的
n. 突然发生的事

A sudden loud blow or bump.
砰然作响发出砰一声的猛击或猛撞

A sudden, striking surprise;a twist.
意外发展突然的、惊人的变化；意想不到的转折

Hasty climbers have sudden falls
大起者有大落

thrust是什么意思：
v. 插；插入；推挤
n. 推力；刺

to thrust; to hustle
猛推

What was the thrust of his argument?
他的论据的要点是什麽？

To hurl, knock, or thrust with sudden violence.
用突然的暴力来猛掷、猛撞或猛推。

mace是什么意思：
n. 钉头锤,权标,权杖,执权标者

David Welsh was roughed up and maced after his arrest.
戴维·威尔士被捕之后，既遭到拷打，又被施以梅斯毒气。

The Speaker is preceded by the mace-bearer upon his entry to the chamber.
当议长走进议事厅的时候，前面由执议长权标的人开路。

Mace is most popular in European foods where it is used in both savory and sweet dishes. It is the dominant flavor in doughnuts.
肉豆蔻衣在欧洲菜肴里是非常流行的,他们喜欢将肉豆蔻衣加在开胃菜和甜味菜里做调味用,尤其是与炸甜甜圈搭配,更能突出其特有的香味.