Paroxypropiophenone
对羟基苯丙酮
🗣️ 情景例句
Were you raised in a bam?
你是牲口棚里长大的吗？
Fall sick and you will see who is your friend and who is not.
困难见友情。
On the way, a young man waved to me.
途中，一个青年人向我招手。