英语语法分析

It is probable that many undiagnosed children exist in the education system with "invisible" disabilities.

在教育系统中，很可能存在许多未被确诊的儿童，他们有“看不见的”残疾。

The infected often go undiagnosed.

被感染的人常常无法得到确诊。

And in most cases, the disease is undiagnosed.

而且大多数的糖尿病患者是没有经过诊断的。