Lechedor
银钠盐
🗣️ 情景例句
I did my thesis on Sino-American Business Relationship.
我做的论文题目是中美贸易关系。
On the way back home,we had a flat tire.
在途中回家,我们有一个轮胎破了。
Although we can't see these atoms, they really do exist.
虽然我们看不见原子，但它们的确存在。