英语翻译：
battle; labour; servant; service; use as a servant
例句：
- 他因视力不好而免服兵役。
His bad eyesight exempted him from military service.
- 他免服兵役。
He is exempt from military service.
- 你们国家实行义务兵役制吗？
Is military service compulsory in your country?
- 有些国家，所有年轻男子都要服一年兵役。
In some countries all the young men do a year's military service.
- 视力不佳将使你免服兵役。
Poor eyesight will exempt you from military service.