A tour of duty
值班, 值日勤务
🧩 词语组成解析
tour
[tuə]
n. 旅行，观光;巡回演出;任职期;轮班;
vt. 到…旅游;在…巡回演出;
vi. 观光;巡回;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
I'm afraid I stayed too long.
恐怕我呆得太久了。
An artist lives everywhere.
艺人处处可安家。
Taking a path which led out of the town, we crossed a few fields until we came to a dense wood.
我们走上了一条出镇的小路，穿过几块农田，来到一片茂密的树林。