the act of firing several guns or dropping several bombs, etc. at the same time; a sudden attack 齐射;齐投;奇袭 The first salvo exploded a short distance away. 第一批投下的炸弹在不远处爆炸。 - (figurative)
The newspaper article was the opening salvo in what proved to be a long battle. 报上那篇文章是一场长期论战的开篇第一炮。
Word Originlate 16th cent. (earlier as salve): from French salve, Italian salva ‘salutation’.