Characteristic of all assault rifles, a selector level allows the shooter to choose between automatic (continuous firing) and semi-automatic (single-shotfiring).
突击步枪共有的特点是，分配器手柄可以让射手在全自动(连续发射)和半自动(单发发射)之间进行选择。
2
Our enemies were caught unprepared and we disposed of them without firing a single shot.
我们打了它个措手不及，一枪没放就把他们收拾掉了。
《新英汉大辞典》
3
At present, they can shoot only if their life or that of others is in danger, after firing a warning shot.