Osotetrazine
[化] 接四嗪; 1,2,3,4-连四嗪
🗣️ 情景例句
I really appreciate you coming over to help me with my math.
我真的很感谢你过来帮我补习数学。
It should be there at 11:45, but it may be a little late.
应该是11点45分到那里，但也可能稍晚一点。
How far is it?
有多远？