Pentoses
[医]戊糖（类），五碳糖（类）
🗣️ 情景例句
I think we should leave the door open. it's boiling in there.
我觉得我们应该把大门敞着，屋里太热了。
He who rides a tiger is afraid to dismount.
骑虎者难下。
I dig songs and I like pop music very much.
我特别喜欢歌曲和流行音乐。