Methylacetal
醋酮
🗣️ 情景例句
Yes, we are, Mr. Wang. How are you going to pay?
对，我们开门。你打算如何付钱？
He is lifeless that is faultless.
人孰无过。
Nuts. How many monkeys can you see?
坚果。你能看见多少只猴子？