不到紧急关头不要亮出撒手锏。

Don't reveal your trump card before the crucial moment.

在历史小说里，这种武器被称为“撒手锏”，可以在不制强敌之时反手予以致命一击。 即使在中国当代兵法里，撒手锏仍然是核心内容。

Referred to in historical novels as an "assassin's mace", the weapon that can deal a fatal blow to otherwise superior enemies remains a core part of modern Chinese military doctrine.

这是源泉公司与中国音乐著作权协会当初保留的两个“撒手锏”之一。

This is fountainhead company and association of Chinese music copyright two when withhold at the outset " one's trump card " one of.