Dermatoplasm
胞壁质
🗣️ 情景例句
There are a lot of beggars on the street, how can we help them?
街上的乞丐那么多，我们怎么能帮助他们呢？
I bought 3 pounds of flour.
我买了三磅面粉。
What happened next?
跟着发生了什么事？