Circulatory system
01
循环系统, 血液循环系统
the network of vessels and organs, including the heart, that transports blood throughout the body, delivering nutrients and oxygen while removing waste products
例子
The circulatory system helps blood move in our bodies.
循环系统帮助血液在我们的身体中移动。
Our heart is part of the circulatory system.
我们的心脏是循环系统的一部分。
