Keeper current
[计] 保持电流
🧩 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
Well, let's go down to the coffee shop.
哦 ，那我们下去咖啡厅吧。
There's something wrong with the phone.
电话出了点儿毛病。
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。