Metafuel
三聚乙醛片(酒精灯燃料)
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
Clearly their victory is out of the question.
很显然，他们是不可能获胜的。
So there were many people in the doctor's waiting room.
所以医生的候诊室里有很多人。