Denitrifier
[医] 脱氮菌
🗣️ 情景例句
There are lots of places to go,
有很多地方要去，
Lots of people like stamp collecting.
许多人喜欢集邮。
Whatever the source of noise, one thing is certain: silence, it seems, has become a golden memory.
看来寂静已变成一种珍贵的回忆。