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
Did the University of Michigan win another football game?
是不是Michigan大学又赢得了一场足球赛？
Beggars cannot be choosers.
饥不择食。
but they did not go out of their way to court such excitement.
但是，他们并非故意寻求这种刺激，