Pyrethrone
[化] 除虫菊酮
🗣️ 情景例句
Good morning, Mr. Tao.
早上好，陶先生。
He laughs best who laughs last.
谁笑在最后，谁笑得最好。
Mary is still writing letters. She's been writing letters all day.
马力还在写信，她写了一整天的信。