At about the same time, for reasons that are still not completely understood but that may include a dearth of eligible wage-earning men, the number of unmarried teenage mothers soared.

• 大约在同时，未婚的未成年母亲数量大幅上升，理由还不完全清楚，但是缺少会工作赚钱的合格男人也许是一个原因。