Chlroacetophenone
[机] 氯乙酰苯
🗣️ 情景例句
Great! I'll make a reservation right now.
太好了， 我现在就订房间。
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
Mum, I don't feel very well.
妈妈，我感到不舒服。