Permsele lective membrane
[机] 通透选择膜
🧩 词语组成解析
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
Where did you receive your master degree?
你在哪里获得硕士学位的?
Dan wondered why he was wanted by the police, but he went to the station yesterday and now he is not worried anymore.
丹奇怪警察为什么找他,但昨天还是去了,结果他一再担心了。
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