Allethrin
n. [化]丙烯除虫菊(酯),丙烯菊酯
🗣️ 情景例句
Are you Mr. Chen?
你是陈先生吗？
No smoke without some fire.
无风不起浪。
The city at one time must have been prosperous, for it enjoyed a high level of civilization.
这座古城肯定一度很繁荣，因为它曾享有高度的文明，