Pellidon
多孔聚酰胺膜
🗣️ 情景例句
I just don't know what to say.
我真不知该说什么好。
You cannot flay the same ox twice.
一头牛不能剥两次皮。
Sometimes it snows, and the land is all white. Then we go skating.
有时会下雪，地面白茫茫一片。那时我们就去滑冰。