Piperylone
[化] 哌立酮; 哌吡唑酮
🗣️ 情景例句
Susan, I understand you're in the toy business. Susan
听说 ，是在玩具业工作。
Who are you writing to?
你在给谁写信？
We certainly expect our product to be available by October 1.
我们的产品在可在10月1日前准备好。