Butadienyl
[机] 丁间二烯基
🗣️ 情景例句
Vote for me, Ellen Stewart.
请投我 Ellen Stewart一票。
It's Monday today.
今天是星期一。
But he wanted to see the old folk again and to visit my mother's grave.
但是，他想看一看家乡父老乡亲，为我的母亲扫墓。