Pentapropyl
五丙基
🗣️ 情景例句
I love this.
我喜欢这个。
What is he doing?
他做什么事？
As complaints must be made in writing, the Ombudsman receives an average of 1,200 letters a year.
由于意见均需用书面形式提出，司法特派员每年平均收到1，200封信。