Permselectivity
选择通透性
🗣️ 情景例句
When's the last time you took a vacation?
上次你去度假是什么时候？
I want to welcome you all here for the fourth annual meeting of our Asian sales staff.
欢迎所有来参加我们亚洲推销员第四届年会的代表。
The armchairs are near the table.
那些扶手椅靠近桌子。