Retinometer
视网膜计
🗣️ 情景例句
A boy--Max.
男孩。叫Max。
Do you have a book?
你有一本书吗？
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。