translation.en: Again, fairly more complex organs, but by far, the most complex solid organs are actually the vascularized, highly vascularized, a lot of blood vessel supply, organs such as the heart, the liver, the kidneys.
translation.zh: 得到更复杂的器官。 但到目前为止，最复杂的实体器官是 是包含很多血管的实体器官。 器官连接很多血管的， 比如心脏， 肝脏，肾脏。