Aldolactol
内缩醛
🗣️ 情景例句
There's a conversation we have to finish.
我们有一段话还没有谈完呢。
Would you like me to take you around introduce you?
现在让我替你向大家作介绍好吗？
Some of them are very cheap.
其中有些商品挺便宜的。