Natrometer
测钠计, 钠量计
🗣️ 情景例句
She's come here to stay.
她这次来是要住下来。
It is a sad house where the hen crows louder than the cock.
母鸡司晨家不兴。
For example, we make bicycle parts and tractor parts. Any questions?
例如，我们制造自行车和拖拉机的零部件。 有什么问题吗？”