The words themselves tell us the former are either married or single but have come by themselves to Shanghai to make a living. The second group is composed of married women who have given up their work in Taiwan and followed their husbands across the strait to be good wives and mothers.
顧名思義，前者或已婚或未婚，但隻身赴任為自己的事業打拚；後者已婚但放棄台灣的工作，隨先生跨海打拚、相夫教子。