Others rise at dawn. They work 15-hour days or longer, seven days a week. When they topple onto their bunk beds, it is 12 to a room. There is no heat.

• 还有一些工人要在天蒙蒙亮的时候起床。他们每天工作至少15个小时，一周工作七天。当他们精疲力尽倒在双层床上的时候，这个挤了12个人的房间里根本没有暖气。