Nitrosoaniline
亚硝基苯胺
🗣️ 情景例句
I'm really concerned about going away for the weekend, Ellen,
我这个周末出门实在放心不下， Ellen，
What you said is beyond me.
你说的话我无法理解。
But which language is the most widely spoken in the world?
但是世界上哪种语言运用最广泛？