Electronic sentry
[计] 电子报警器, 电子哨兵
🧩 词语组成解析
sentry
['sɛntri]
n. 哨兵;警卫;
🗣️ 情景例句
That's right. Grandpa hangs it there for good luck.
是的。爷爷把它放在那儿 以求好运。
All is not gold that glitters.
闪闪发光的不见得是金子。
You must weigh it carefully.
你必须仔细地称一称重量。