Permeaselectivity
选择渗透性
🗣️ 情景例句
And tell them you want to go on the tour that goes down into the canyon.
跟他们说你要参加到峡谷里去的旅游团。
He's on the phone.
他在打电话。
I do not care whether it rains or not.
我不管天会不会下雨。