Permeaselectivity
选择渗透性
🗣️ 情景例句
My pleasure, Malcolm.
我也很荣幸， Malcolm。
Let's go to the station to get a train into town.
我们到火车站去乘车进城。
It was raining heavily and they found that a stream had formed in the field.
雨下得很大，他们发现地上已经形成了一条小溪。