But what if fixing a busted bicuspid was as easy as zapping it with a laser?

但如果修补一个损坏的两尖齿变得和用激光磨牙一样容易会怎样？

He lifted massively heavyweights, and it turned his aortic valve, the one that looks like a Mercedes sign, into a bicuspid double triangular flap.

他能举起巨大的重物，使用类固醇把他的主动脉瓣，那个看起来像梅赛德斯标志的瓣膜，变成了只有一个二尖瓣膜，两个三尖瓣膜。

From the lungs, freshly oxygenated blood flows back into the left atrium and passively passes through the mitral or bicuspid valve to fill the left ventricle.

新鲜的含氧血液从肺部流回左心房，被动地通过二尖瓣（bicuspid valve）注入左心室。

Coarctation of the aorta and a bicuspid aortic valve can cause lower extremity cyanosis, meaning a bluish or purplish discoloration of the lower limbs, and can result in congestive heart failure.

主动脉缩窄和二叶式主动脉瓣畸形会导致下肢紫绀，意味着下肢呈青紫色，并可导致充血性心力衰竭。

There are also plenty of other unidentified genes on the X chromosome, so individuals with Turner syndrome are predisposed to cardiovascular defects like preductal coarctation of the aorta and bicuspid aortic valve.

X染色体上还有很多其它未被识别的基因，所以特纳综合征患者容易出现心血管缺陷疾病，如导管前型主动脉缩窄、二叶式主动脉瓣畸形。

Most adults have 32 teeth called permanent or secondary teeth; 8 incisors, 4 canines, also called cuspids, 8 premolars, also called bicuspids, 12 molars, including 4 wisdom teeth whereas children have 20 teeth.

大多数成年人有 32 颗牙齿，称为恒牙或副牙；8 颗门牙，4 颗尖牙也叫犬牙，8 颗前磨牙，也称为双尖牙，12 颗臼齿，包括 4 颗智齿，而儿童有 20 颗牙齿。

Now that blood is freshly oxygenated from its trip to the lungs, it returns to the left atrium of the heart and passively flows through the bicuspid (or mitral valve).

现在，血液从进入肺部时被新鲜氧化，回到心脏的左心房，并被动地流过二尖瓣（或mitral valve）。

Oxygenated blood returns to the heart by way of pulmonary veins, which empty into the left atrium. Atrial contractions force blood from the left atrium through the mitral valve, also called bicuspid valve, into the left ventricle.

当心室收缩时，左室内血液经主动脉瓣流入主动脉¬----人体最大的动脉，为全身组织供血。