salvo
/ˈsælvəʊ/noun
(pl. -os 或-oes)
1- a simultaneous discharge of artillery or other guns in a battle（战斗中各类枪炮的）齐射, 同时开火。
1.1
- a number of weapons released from one or more aircraft in quick succession（飞机）齐射的炮火; 齐投的炸弹; 连发的炮火。
1.2
- figurative a sudden, vigorous, or aggressive act or series of acts〈喻〉突然的（一连串的）行为; 一阵, 一片：
the pardons provoked a salvo of accusations
赦免引起了一连串猛烈指责。
词源
late 16th cent. （earlier as salve）： from French salve, Italian salva 'salutation'.