柯林斯词典open-heart surgery 1. N surgical repair of the heart during which the blood circulation is often maintained mechanically 心内直视手术; 机械维持血液循环的外科心脏修复手术 返回 open-heart surgery剑桥词典a medical operation in which the body is cut open and the heart is repaired , while the body's blood is kept flowing by a machine 心脏直视手术；体外循环心脏手术 返回 open-heart surgery