How to break sentences after more than 20 days of injury

Sick and injured for more than 20 days.

I was injured and ill, hiding in bushes and grass for more than 20 days. Among them, I was disconnected from bushes and grass for more than 20 days, so I can be disconnected into a residual injury.

This quatrain from meiling three chapters was written by Chen Yi, the producer of China, when he was besieged by the 46th Division of the Kuomintang.