From 1949 to 1990,the life expectancy rose from 35 years to 68.55 years--66.84 years for males and 70.47 years for females,making China a country where the life expectancy increased the most rapidly.是什么意思_From 1949 to 1990,the life expectancy rose from 35 years to 68.55 years--66.84 years for males and 70.47 years for females,making China a country where the life expectancy increased the most rapidly.在线翻译_英语_读音_用法_例句