英语翻译blood vessel :a tube carrying blood away from or towards the heart.blood vessels are the means by which blood circulates throughout the body.要自己翻译~不要自动翻译机来直接翻译~

英语翻译blood vessel :a tube carrying blood away from or towards the heart.blood vessels are the means by which blood circulates throughout the body.要自己翻译~不要自动翻译机来直接翻译~
英语翻译
blood vessel :a tube carrying blood away from or towards the heart.blood vessels are the means by which blood circulates throughout the body.
要自己翻译~不要自动翻译机来直接翻译~

英语翻译blood vessel :a tube carrying blood away from or towards the heart.blood vessels are the means by which blood circulates throughout the body.要自己翻译~不要自动翻译机来直接翻译~
血管：在心脏与身体其他部分运输血液的管道.血液经由血管得以在身体内循环.

血管：运载血液进入或离开心脏的管状器官。血光是血液在全身内循环的方式！

血管：运载血液进入或离开心脏的管状器官。血光是血液在全身内循环的方式!

血管：在全身与心脏之间输血的管道。血通过血管再全身循环。
哈哈。。。。。。。。