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 did both with Richard and Susan,
有Richard和Susan时我这样做，
He is a very funny man.
他是一个很有趣的人。
He tried to escape but was followed and caught.
他曾经试图逃跑，但是被人追上来抓住了。