Keeper voltage
[计] 保持电压
🧩 词语组成解析
keeper
['ki:pə]
n. 保管人;饲养员;负责人;监护人;
🗣️ 情景例句
Here, take a look at these Rolexes.
来看这几只劳力士吧！
I like playing football.
我喜欢踢足球。
Now, this is the chemistry lab. Have you been in this lab before?
好啦，这是化学实验室。你们以前到过这个实验室吗？