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
Guess what I just found out.
你猜我刚知道了什么？
May I see your passport?
我能看你的护照吗？
I really need to lose some weight.
我真的需要减肥了。