Xanthenone
[化] ┷吨酮
🗣️ 情景例句
He did it as a special favor.
他做这事算是特别照顾。
She changed into old clothes for the sake of comfort.
为了舒适，她换上了旧衣服。
We can't sign the contract yet.
我们还不能在契约上签字。