Porasil
多孔硅胶珠
🗣️ 情景例句
I have spent the last five years working specifically in this field.
过去五年我专门在这个领域里工作。
This mountain range has many high peaks and deep canyons.
这条山脉有许多高山峰和深峡谷。
There were no classes this afternoon. My classmates all went to People's Park.
今天下午没有课。同学们都到人民公园去了。