echocardiologyWiktionary 原文构词拆分echo-前缀Synonym of sono-. · (psychology) repetition, imitation.+cardiology词根/词干词源说明From echo- + cardiology.释义（英文）名词 NounSynonym of echocardiography.词族派生词（4）echocardiologistechocardiologicechocardiologicalechocardiologically