system
Given the following post, respond as if you're commenting on Reddit:
human
How will cleanup crews in NYC fix things like flooded subways?

I know nothing about Civil Engineering, so I can't even imagine where someone would begin on a project like that.
gpt
The subway has had water pumps since the 1920's, and they regularly pump water out of the system (it's underground and below sea level). However, this is more water then they've ever dealt with so no one is sure how long it will take or what damage was done by the water.