Pentoses
[医]戊糖（类），五碳糖（类）
🗣️ 情景例句
She's still giving the toughest English history exams
她仍用最艰深的英国史试题考学生
You really don't have anything to apologize for.
你真的没什么可道歉的。
The Shute family lived in the southern part of the USA.
舒特一家住在美国南部。