Norcholane
降胆烷
🗣️ 情景例句
He speaks French and English with equal ease.
他说法语和英语都一样自如。
A friend is never known till a man have need.
不到患难时，永远不能认识真正的朋友。
Do you think there is something wrong with the contract?
你认为合同有问题吗？