Friendly fire
n. 误杀, 误伤（战争中由己方或友军造成的死伤）
🧩 词语组成解析
fire
['faiə]
n. 火，燃烧物;火灾;射击，发射;热情;
vt.& vi. 开火，射击;燃烧;引爆炸药;充满热情;
vt. <口>解雇;射（箭）;激励;射出（子弹）;
🗣️ 情景例句
Why don't you join us?
你何不参加入我们呢？
A cock is bold on his dunghill.
站在粪堆上，公鸡也称王。
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某种作用。