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
Oh, I see. I've had lots of work to do in New York.
哦，原来如此。我在纽约也有好多工作要做。
All of us hope that you will enjoy yourselves.
我们全体人员祝大家过得愉快。
It was at Charlie's wedding. You were playing the piano.
那是在查理的婚礼上，你在弹钢琴。