Pentoses
[医]戊糖（类），五碳糖（类）
🗣️ 情景例句
I researched it for over a year.
我研究了一年多。
Art is long, life is short.
艺术恒久，生命短暂。
On being introduced to somebody, a British person often shakes hands.
英国人被介绍给别人的时候常常和对方握握手。