Pentonic acid
[化] 戊糖酸\\n[医] 戊糖酸
🧩 词语组成解析
🗣️ 情景例句
Robbie, the dinner was terrific.
Robbie，晚餐真是棒透了。
Did you go to the concert yesterday?
你昨天去听音乐会了吗？
What do the machines do? asked Jim.
“这些机器做什么用？”吉姆问。