Pentoses
[医]戊糖（类），五碳糖（类）
🗣️ 情景例句
I designed it myself.
这是我自己设计的。
These clothes are too short, they need to be let down.
这些衣服太短了需要去改一下。
There are some clouds in the sky,but the sun is shining.
天空中飘着几朵云，但阳光灿烂。