Cancer cells metastasize through the body.是什么意思？

Cancer cells metastasize through the body.

癌细胞蔓延全身.

cancer

n. 癌症，恶性肿瘤，弊病，社会恶习，迅速蔓延的恶劣的或危险的事物，[天]巨蟹座，巨蟹宫；

例句
An increasing body of evidence suggests that all of us have cancer cells in our bodies at times during our lives.
越来越多的证据表明，我们所有人一生中体内时有癌细胞存在。

cells

n. <生>细胞( cell的名词复数 )，小牢房，（修道士或修女住的）小房间，电池；

例句
An increasing body of evidence suggests that all of us have cancer cells in our bodies at times during our lives.
越来越多的证据表明，我们所有人一生中体内时有癌细胞存在。

metastasize

vi. 转移；

例句
Cancer cells metastasize through the body.
癌细胞蔓延全身.

through

prep. 通过，穿过，经由，透过，凭借；adv. 从头到尾，彻底，自始至终；adj. （电话）接通，通话完毕，有洞的，直达的；

例句
The proposal was instantly voted through with two to one in favour, accompanied by enthusiastic applause...
在热烈的掌声中，提案以2比1的优势很快通过了表决。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

body

n. 身体，尸体，团体，物体；vt. 赋予形体；

例句
...drugs which will fool the body into accepting transplants.
能使身体顺利接受移植器官的药物