Biodegradation
生物降解
🗣️ 情景例句
She's always changing jobs.
她老是换工作。
You can take a horse to the water but you cannot make him drink.
马到河边不喝水，逼马低头亦枉然。（不要逼人做他不愿做的事）
It's red. It's a red car.
红色的，一辆红色的车。