n.

1. 借口
2. 保护手段；慰藉
3. 齐射；一齐轰炸
4. 热烈的鼓掌；喝彩
   The Chairman's speech received a salvo of applause.

   董事长的演说得到一阵欢呼。

5. 【律】保留条款

n.

1. a simultaneous discharge of artillery or other guns in a battle.
2. a sudden vigorous or aggressive series of acts.