Permeable membrane
[机] 渗透膜
🧩 词语组成解析
membrane
['membrein]
n. （动物或植物体内的）薄膜;隔膜;（可起防水、防风等作用的）膜状物;
🗣️ 情景例句
He said I should call him.
他说我可以打电话给他。
I've bee invited over to a friend's, and you?
有个朋友请我去作客，你呢？
As is so often pointed out, knowledge is a two-edged weapon which can be used equally for good or evil.
正像人们常常指出的，知识是一把双刃刀，可以用于造福，也可以用来为害。