Biodegradation
生物降解
🗣️ 情景例句
I think that's a great idea.
我觉得这个主意真不错。
Vain glory blossoms but never bears.
虚荣能开花，但从不结果。
He entered the cell and presented the letter to the aristocrat.
狱卒走进牢房，将信交给贵族。