Alkanolamide
链烷醇酰胺
🗣️ 情景例句
Where there's smoke, there's fire.
事出必有因，无风不起浪。
We have new methods like compensation trade and joint ventrue.
我们有补偿贸易和合资经营。
The radio says the snow will stop later in the day.
无线电广播说 今天晚些时候雪会停的。