According to national statistics, the ratio of male to female migrant workers averages 2:1, and an estimated 30-40 million of the migrant women work in the cities, namely Hong Kong and Shenzhen.
根据国家统计局统计，男女民工数量的比例平均为2:1，预计有3000万到4000万女工在城市里工作，也就是香港和深圳这样的大城市。