vi.[医]（癌细胞等）转移，扩散；迁徙
Carcinomas often metastasize to lymphatics. 癌经常转移至淋巴管。
Although giant-cell tumors are typically considered to be benign tumors, they can be aggressie and can een metastasize. 骨巨细胞瘤虽然通常被认为是良性肿瘤，但可能会有侵袭性甚至发生转移。
