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
We had a unique experience here.
我们在这里获得了宝贵的经验。
If he doesn't pay him, I will.
如果他不，我将付给他。
'Do you always catch such an early train?' asked the inspector.
“您总是赶这样早的火车？”探长问。