【醫(yī)】 primary cause

原的英語翻譯：

former; original
【化】 ortho-
【醫(yī)】 arch-; arche-; ortho-; pro-; prot-; proto-

發(fā)的英語翻譯：

hair; issue; send out; deliver; utter; develop; discover
【醫(yī)】 capilli; capillus; crinis; crinis capitis; hair; Mit.; pili; pilo-
pilus; thrix; trich-; tricho-

原因的英語翻譯：

cause; reason; account; consideration; matter; subject; wherefore; why
【醫(yī)】 cause