Acetylenedinitrile
乙炔二氰, 丁炔二腈
🗣️ 情景例句
So, are there any major cultural differences between our two nations?
我们两国间有什么大的文化差异吗？
The eagle glides gracefully.
老鹰优雅地在空中滑翔。
'What are you doing?' she asked.
你在干什么？她问