Penturonic acid
[化] 戊糖醛酸
🧩 词语组成解析
🗣️ 情景例句
About three weeks. We'll have enough time for our talks.
大约三个礼拜，我们有足够的时间交谈了。
Be my guest.
请便、别客气
The examiner looked at me sadly.
主考人伤心地看着我。