Nontransparency
不透光性能
🗣️ 情景例句
And thank Susan.
还要谢谢， Susan。
I swear I'll never tell anyone.
我发誓不告诉任何人。
My pen dropped on the ground when I was walking in the park.
当我在公园里散步的时候，我的钢笔掉到地上了。