Sentry duty
na. 步哨勤务\\n
🧩 词语组成解析
sentry
['sɛntri]
n. 哨兵;警卫;
🗣️ 情景例句
There's no end to the paperwork I have on my desk.
我桌上的工作永远没个完。
Joseph likes to listen to music.
约瑟夫喜欢听音乐。
The teacher got a little angry.
老师有点生气了。