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
To the patients in the ward?
读给病房里的病人？
Mother begins baking cookies two weeks before Christmas.
自圣诞节的两周以前，母亲就开始做小甜饼了。
What will you do if you win a lot of money?
要是你赢了许多钱，你打算做什么呢？