Objective: To find a simple, quick and correct method to check refractive state of children.

目的：寻求一种简单、快速而准确的儿童屈光检查方法。

youdao

Objective: To find a simple, quick and correct method to check refractive state of children.

目的：寻求一种简单、快速而准确的儿童屈光检查方法。

youdao