Dipmeter
栅陷振荡器, 栅流陷落式测试振荡器
🗣️ 情景例句
Let's drill them in English pronunciation.
我们来给他们做英语发音练习。
School should be a time for learning.
学生时代，应该学习许多重要的事情。
There isn't any trouble. I'm just waiting for my change.
没事儿。我只是等着找钱。