Hastite
白硒钴矿
🗣️ 情景例句
Tongue muscles'training is of great importance in learning any foreigh language.
口腔肌肉训练在学习任何语言时都是非常重要的。
Maybe we could start with the Designing Department.
也许我们可以先参观一下设计部门。
We have a problem with your order.
你订的货有点问题。