Biodegradation
生物降解
🗣️ 情景例句
Yes, but you did, and we've got our lunch.
没错， 但你念了， 使我们钓到了午餐。
It is never too late to mend.
亡羊补牢，犹为未晚。
It is one of the world's most important languages because it is so widely used.
英语使用得如此广泛，它已成为全球最重要的语言之一。