Chitosan
[药]壳聚糖, 脱乙酰壳多糖, 脱乙酰几丁质, 聚氨基葡萄糖
🗣️ 情景例句
I don't envy him his money problems.
我庆幸自己没有他那些金钱的烦恼。
Donald has become incensed at his friends for being so unkind.
唐纳德因为他的朋友太不客气，所以被激怒了。
You must weigh it carefully.
你必须仔细地称一称重量。