Sent_en: 2zh The study also reveals that a male born in the late 1870's would have had an average life span of 51-years-old and in the 1930's the average life span was 69-years-old.
Sent_yy: 研究还显示，出生于19世纪70年代末的男性的平均寿命为51岁，而出生于20世纪30年代的男性，平均寿命为69岁。