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右心耳 yòu xīn ěr
anat. right auricle (呈三角形,突向左前上方,遮盖升主动脉根部的右侧面。右心耳内面有许多相互交织的肌小梁)
anim.husb. right auricle of heart
sport., med. right auricle (of heart)
surg. right auricle