N-acetylhexosamine
[化] N-乙酰己糖胺
🗣️ 情景例句
But Dad is always so busy.
但是爸爸总是那么忙。
Oh no! It's starting to rain.
哦，糟了！开始下雨了！
Which one is cheap? Which one is dear?
哪一支便宜？哪一支贵？