1.etiquette n.礼仪；礼节

The rules of etiquette are not so strict nowadays.
如今的礼仪规则已不那么严格了。

2.prompt v.激起；促进；推动

The occasion calls for prompt action.
这场合需要迅速的行动。

3.brisk a.敏锐的；活泼的；活跃的

His movements were brisk and boyish.
他的动作仍很敏捷，孩子气。

4.strategy n.策略；战略

The strategy was designed to wear down the enemy's resistance.
这一策略旨在逐步削弱敌人的抵抗力。

5.scarce a.缺乏的；不足的；稀少的

Food and fuel were scarce in this region.
这地区食物和燃料都很缺乏。