The inner layer of the membrane is small enough to prevent the cells from leaking out, but the outer layer is large enough to encourage blood vessels to grow along the membrane.

薄膜内层间隙足够小，细胞不会渗漏出去。膜的外层间隙足够大，血管能沿着膜面生长。

youdao

That makes sense, he said, because it's the tumor's outer edges that are richest in those blood vessels that help the tumor grow.

这很合理，他说，因为正是肿瘤的边缘富于这类供应肿瘤生长的血管。

youdao

Nor are all of them victims of financial collapse: the local economies in some outer islands, rich with exportable resources, such as palm oil, have continued to grow throughout the crisis.

ECONOMIST: Indonesia��s chance