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
I've been there several times.
我到那儿去过好几次。
This nation is noted for its scientific accomplishments.
这个国家以科学成就闻名。
I have to wash all the plates and things after meals, and do a lot of work in the garden.
饭后我得洗全部盘子和其他东西，还要在花园里干很多活。