Short paragrph after wathing BBC documentary

While I watched this short video clip from the BBC documentary called Blood sweet T-shirts,
I found one fact that relates to the book we just read (Travels of a T shirt in a Global Economy). At the end of video clip, the students experienced working in factory making cloth. It’s very similar with Shang-hai factory in the book. They worked really hard, but the payment isn’t that good. It happens in real society too, mostly because they have trouble between their owner and the workers.