[医] chronological age ;
His chronological age was 71 years.
他的实足年龄是71岁.
He died in his sixtieth year, ie at the age of 59.
他在步入六十岁时去世(即实足年龄59岁).
According to their age , they were devided into five sections ( 10~13 Y , 13~14 Y , 14~15 Y , 15~16 Y, 16~20 Y ).
分五个年龄段:10~13岁, 13 ~ 14岁, 14~15岁, 15~16岁,16 ~ 20岁.年龄以实足年龄为准, 精确到出生日期.
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