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.是什么意思_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.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句