Dielectrometer
电介质测试器
🗣️ 情景例句
The economy is booming in this country.
这个国家的经济形势一片大好。
We never know the worth (or value) of water till the well is dry.
井枯方知水可贵。
No. I've never been to that farm before. What kinds of animals have they got?
不，我以前从来没有去过那个农场。他们有哪些种类的动物？