Levulosans
聚果糖类
🗣️ 情景例句
my mother is running for the school board?
我母亲竞选联合校董会董事吗？
Tennis clothes are so cute!
网球装非常可爱。
Hello. You must be Dr Yang. How do you do? My name's David Lee.
嗨。你一定是杨博士吧。您好！我是大卫·李。