Heptachlorodicyclopentadiene
[化] 七氯
🗣️ 情景例句
Show some courtesy or I shall cease dealing with your company.
请客气些，否则我将停止与你们公司打交道。
How much do you want to change?
您想兑换多少？
It is a famous beauty spot.
这是一个著名的风景胜地。