Acetylenedinitrile
乙炔二氰, 丁炔二腈
🗣️ 情景例句
He ventured upon an enterprise.
他大胆地开始了他的事业。
Many hands make quick work.
人多干活快。
But this was before Annie Sullivan came to stay.
但是，这都是安妮·莎利文来住下之前的事了。