Dutch courage  酒后之勇， 一时的勇气

据说，荷兰军队的习惯是在开赴前线作战之前，都要痛饮一场，固有此说。 沃勒 (Waller) 在1665年写到：“荷兰人一旦失去酒和全部白兰地，他们借酒后鼓起之勇气也化为乌有。”

The Dutch their wine and all their brandy lose,

Disarmed of that which their courage grows.

例： It took a considerable amount of Dutch courage to enable the clerk to tell his chief just what he thought of him. 这个职员要有相当大的勇气才能把他对上司的看法讲给上司听。