Biodegrades
vt. 生物递降分解（biodegrade的第三人称单数形式）
🗣️ 情景例句
Yes, a double room, please. What?
对， 双人房间 麻烦你。什么？
This is Tom. He's my classmate.
这是汤姆。我的同学。
Looking at his watch, he saw that it was one o'clock, but the bell struck thirteen times before it stopped.
他一看表，才1点钟，可是那钟一边敲了13下才停。