Acrol
亚烯丙基
🗣️ 情景例句
What's wrong?
怎么了？
For those of you that didn't hear it, the question was how soon we could expect the product to be on sale.
你们并未听说过，问题是产品多快能上市。
why have we had no visitors from outer space yet?
那么我们为什么还未见到外层空间来访的客人呢？