什么是肿瘤？ What is a tumor？

什么是肿瘤呢？这条视频将带你了解肿瘤的形成过程，用三维技术展示人体中的器官组成、血液中癌细胞的产生和传输以及肿瘤的形成。
What is a tumor? This video will take you through the process of tumor formation, showing in three dimensions the composition of organs in the body, the production and transmission of cancer cells in the blood, and the formation of tumors.

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外受體細胞！