tour of duty
任期
例句与用法：
The tour guide give a running commentary from the front of the coach.
导游在旅游车的前部向游客作连续的现场解说。
Are you suggested I am a tour guide?
你是不是建议我当导游？
The tour guide gave a running commentary from the front of the coach.
导游在旅游车的前部向游客作连续的现场解说。
词形变化：
名词复数: tours de force |
ph.
服役期; 任期