Steramide
乙酰磺胺
🗣️ 情景例句
Will you help me?
可以帮助我吗？
The times of comradeship in sports and play are full of meaning.
这个通过运动或游戏培养友情的时代，是极有意义的。
The best time to come to China is in spring or autumn.
到中国来，最好的时间是在春天或者秋天。