先天與後天

nature versus nurture

early / prior / former / in advance / first

embryonic period (contrasted with 後天|后天 [hou4 tian1]) / inborn / innate / natural

day / sky / heaven

variant of 歟|欤[yu2]

and / to give / together with

to take part in

back / behind / rear / afterwards / after / later / post-

the day after tomorrow / life after birth (the period in which one develops through experiences, contrasted with 先天[xian1 tian1]) / acquired (not innate or congenital) / a posteriori