Pseudochitin
假(甲)壳质
🗣️ 情景例句
Could you give me some information on your European tours?
你可以给我一些你们经办的有关欧洲旅行的资料吗？
Bill was very jumpy as he waited for the phone to ring.
贝尔忐忑不安地等着电话来。
I've heard so much about you.
久仰大名。