inborn
adjective uk/ˌɪnˈbɔːn/ us/ˈɪn.bɔːrn/
天生的，先天的
used to refer to a mental or physical characteristic that someone has from birth
Apparently some people have an inborn tendency to develop certain kinds of tumour. 显然有些人天生就容易患某些肿瘤。
She seems to have an inborn talent for physics. 她似乎有学物理的天资。