active service的用法和樣例：
例句
用作名詞 (n.)
- She has been on active service for ten years.
她已服了十年現役。 - He was discharged from active duty.
他被解除現役。
辭彙搭配
- active service 現役
- on active service 在職(在役
- in active service 在職(在役
