Xan
n. 黄嘌呤（等于xanthine）
🗣️ 情景例句
Well, I have a scheduling problem.
嗯，我在排工作方面遇到困难。
Don't forget to phone to let us know you arrived safely.
不要忘记打电话，告诉我们你已经安全抵达。
Yes, that's right.
是的，没错。