Chitin
n. 几丁质, 壳多糖\\n[化] 壳多糖; 几丁质; 甲壳质
🗣️ 情景例句
Yes, I have been working in an advertisement company in the last two years.
是的，在过去两年里，我一直在一家广告公司工作。
What we are ignorant of is immense.
我们不知道的东西多得不可胜数。
He's a terrible man when he's angry.
他生气的时候很可怕。