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
Please have your customs declaration form ready.
请把您的申报表准备好。
That's just what I'm looking for.
这就是我要的。
By January 10th, I was back to where I had started from.
到了1月10日，我恢复了原来的作息时间。