Biodegradation
生物降解
🗣️ 情景例句
Someone told me you're the computer expert around here. Weel, I have a question for you...
有人告诉我你在这里是计算机专家，我有个疑难想请教你。。。
There's something wrong with the phone.
电话出了点儿毛病。
Jack is trying to cut down on smoking.
竭克正竭力戒烟。