Permselectivity
选择通透性
🗣️ 情景例句
I hope you don't mind my asking, but I'd like to know.
我希望你不介意我向你打听一下，我想知道。
Oh, I'm very sorry, sir.
噢，我实在抱歉。
First I heard a noise.
我最先听见一阵响声。