当兵英语怎么说？

当兵英语说法是 "to serve in the army" 或 "to be in the military"。

这个说法源自于英语中的 "serve" 和 "army" 这两个词，"serve" 表示 "担任" 或 "做"，"army" 表示 "军队"。因此，"to serve in the army" 意思就是 "在军队中服役"。

例句：

My brother decided to serve in the army after he graduated from high school.

I want to be in the military so that I can serve my country.