Biodegraded
vt. 生物递降分解（biodegrade的过去式与过去分词形式）
🗣️ 情景例句
Why advanced?
为什么是高级的？
But you just got here. Can't you stay a little longer?
不过你刚来呀。不能再呆一会了吗？
Good morning. Sit down, please.
早上好，请坐。