Schmutzdecke
[医] 去污层(菌类)
🗣️ 情景例句
Subway transportation is very advanced in Longdon.
伦敦地地铁非常先进。
A young married couple moved in next door to us.
一对年轻结婚的夫妇搬到了我们的隔壁。
they do not make the further intellectual
但他们没有进一步努力