Biodegradation
生物降解
🗣️ 情景例句
OK. Your offer si 5%. I think you have yourself of a deal.
好的，你们降价5%，我们就这样说定了。
He has a book.
他有一本书。
Those who never have to move house become indiscriminate collectors of what can only be described as clutter.
那些从来不必搬家的人们成了一种无所不容的收藏家。他们专门收藏那些只能被称作杂货的东西。