... [formerly,friendship between persons of the same graduation class] 由于同年登科而形成的关系 [age-mate] 同一同庚团的成员 [too old age] 年龄已经太大。蹉跎,这里是过时的意思 ...
双语例句
1
Evolutionarily speaking, people in this age group are at a stage in which they can prepare to find a mate and start their own family while separating from parents and striking out on their own.