Pyrethrosin
除虫菊精
🗣️ 情景例句
If you don't finish your homework, you'll be in big, big trouble.
如果你不完成作业，你就有大麻烦了。
There is no royal road to learning.
治学无坦途。
Can you ring up the bus company?
你能给汽车公司打个电话吗？