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
In a word, we'll provide you with all good service.
我们将为你们提供最好的服务。
If he doesn't take care of him, I will.
如果他不，我将照顾他。
Bring the picnic basket up here, under this big tree, said Ann.
“把野餐篮子拿到这儿来，放在这棵大树下，”安说。