剑桥词典a physical problem present from birth in which a part of the aorta (= the body's largest artery ) is too narrow 主动脉缩窄 With aortic coarctation, pulses in the arms are stronger than those in the legs . 主动脉缩窄情况发生时，手臂脉搏比腿部的有力。 返回 aortic coarctation