Ophiocistioidea
蛇函纲
🗣️ 情景例句
It's too noisy for some older people like Nat.
它对于像Nat这样的老人来说太吵了。
I asked him to do it for me, but he wouldn't.
我请他帮我做，但是他不肯。
A few peopple in each group are given the task of remembering the group's family history that goes back over centuries.
每一个家族都有几个人担任记忆延续了几个世纪的家史的任务。