Permsele lective membrane
[机] 通透选择膜
🧩 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
Yes. I know I must seem silly.
是的，我知道我看来一定很可笑。
A lamb is as dear to a poor man as an ox to the rich.
穷人的一只羔羊比富人的一头牛还要珍贵。
We have just moved into a new house and I have been working hard all morning.
我们刚刚搬进一所新房子，我辛辛苦苦地干了整整一个上午。