Gadinometer
磁强梯度计
🗣️ 情景例句
Why don't we take a walk down to the river?
我们何不一路散步到河边去呢？
The more a man knows, the more he see his ignorance.
大智若愚。
Two main techniques have been used for training elephants,
驯象有两种主要的方法，