Decarbonylation
脱羰作用
🗣️ 情景例句
Where's the dairy food section?
奶制品在什么地方？
After dinner sit a while, after supper walk a while.
午饭后要坐，晚饭后要走。
How long have you worked in this factory?
你在这家工厂工作有多长时间了？