Pyrazinyl
吡嗪基
🗣️ 情景例句
And there's no address on the dog tag.
牌子上没有地址。
How do you spell your last name?
你的姓是怎样拼写的？
So much is certain: that we would have doctors and preachers,
虽然我们还会有医生和牧师、