1. 现役：military science 兵法 | military service 现役 | military 军事的

2. 兵役：nuclear weapon 核武器 | military service 兵役 | field unit 野战部队

3. 当兵(与基督徒)：Midwives of Hebrews希伯来收生妇153,154 | Military Service当兵(与基督徒)487 | Millennium千禧年(划分圣地)609

4. 军种：military posture 军事态势 | Military Service 军种 | military strategy 军事战略

1. 兵役
Military service is a period of service in the armed forces that every man in certain countries has to do.

e.g. Many conscripts resent having to do their military service.
许多应征入伍者对被迫服兵役愤愤不平。

noun

1. land tenure by service in the lord's army

2. a force that is a branch of the armed forces

Synonym: armed serviceservice