Acetylenedinitrile
乙炔二氰, 丁炔二腈
🗣️ 情景例句
He'll do anything to avoid getting down to math lessons,
他老是设法想逃避数学，
Only fifteen minutes.
只要15分钟。
He could make out three men in a basket under it and one of them was holding a pair of binoculars.
他看清了气球下面有3个人呆在一只筐里，其中一个举着望远镜。