Osotetrazine
[化] 接四嗪; 1,2,3,4-连四嗪
🗣️ 情景例句
Yes, I think it's important for me to be there
是的 ，我想我在场是非常重要的。
I invited him to come back, but he wouldn't.
我请他回来，但是他不肯。
Yes, I do. But I walk sometimes.
是的，我通常骑车。但有时我也步行。