初口

【医】 primitive oral cavity

初的英语翻译：

at the beginning of; early; elementary; first; original
【医】 arch-; arche-; prot-; proto-

口的英语翻译：

cut; gob; jaws; mouth; opening; ostium; scoop; stoma
【医】 aditus; apertura; aperturae; aperture; bouche; introitus; meatus; mouth
opening; ora; orifice; orificium; oro-; os1; ostia; ostium; portal
stoma; stomata; stomato-; trema