一种是自体同源趋化作用(Autologous chemotaxis)，其发生于低细胞密度情形或CCR7受体变得有活性。

One is autologous chemotaxis, which occurs in low-cell-density situations or when the CCR7 receptor becomes activated.

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此文对同源盒基因在胃肠道发育及胃肠道肿瘤发生中的作用作一综述。

This paper focus on the role of the homeobox gene in gastrointestinal development and tumorigenesis.

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从发生学的角度来说，狂欢节与戏剧是同源的，因此二者在思想上不可避免地有着某些关联。

Carnival and play are inevitably connected with each other in what they try to express due to their Shared origin.

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