先的英語翻譯：

ancestor; before; deceased; earlier; in advance
【醫(yī)】 fore-

天性的英語翻譯：

makeup; natural instinct; nature
【法】 instinct

脫發(fā)的英語翻譯：

lose one's hair
【醫(yī)】 alopecia; baldness; calvities; defluvium capillorum
defluxio capiliorum; effluvium capillorum; lapsus pilorum; lipsotrichia
morbus vulpis; phalacrosis; trichomadesis; trichosis athrix