Tiferron
1,2-二羟基苯-3,5-二磺酸二钠
🗣️ 情景例句
It's cold outside.
外面很冷。
We have new methods like compensation trade and joint ventrue.
我们有补偿贸易和合资经营。
I am in charge of the company when the manager is out.
经理不在时山我来管理公司。