open an attack

• 开始进攻

open an attack的用法和样例：

例句

1. The officer ordered the soldiers to commence the attack.
   军官命令士兵开始进攻。
2. Having heard the battle drums and horns, it is certain that our troops have started their attack.
   耳听得鼓角齐名，想必我们的军队已经开始进攻了。