Zedeflon
四氟乙烯均聚物
🗣️ 情景例句
We're in the country.
我们在乡村。
Rumor has it that he's found a new job.
听说他又找到了一份新工作。
some snakes manufacture a poison different in every respect from that of others,
有些蛇产生的毒液也在各方面与另外一些毒蛇产生的毒液不同，