As it does that it changes the volume of the heart and gives the - creates the pressure that moves blood around your body, so it has that muscular system.

这使心脏的体积发生变化,产生了足以使血液流遍全身的压力,这就是心脏中有肌肉系统的原因

耶鲁公开课 - 生物医学工程探索课程节选

you have the skate park, you have Muscle Beach, which are very, very exclusive.

有滑板公园，有肌肉海滩，这些都是这里所独有的。

关于肌肉海滩 - SpeakingMax英语口语达人

Your stomach is a very complex organ that has a muscle layer, it has an epithelial layer which is the interface with food that comes in, and it also has a nervous system, so does the heart.

你的胃是一个非常复杂的器官,它拥有一个肌肉层,有一个与摄入的食物,相接触的表皮层,也有一套神经系统,心脏也有

耶鲁公开课 - 生物医学工程探索课程节选

What is an effective way to build muscles?

锻炼肌肉有什么有效的方法？

要拥有好身材 - SpeakingMax英语口语达人