Just how much a process like this can be shaped by natural selection is unclear.

仅自然选择到底能产生多少种类似进程，就仍未查明。

youdao

They can be small or large, raised or flat, or shaped like a cauliflower.

它们可以小或大，提出或单位，或如菜花状。

youdao

They can be small or large, raised or flat, or shaped like a cauliflower.

它们可以小或大，提出或单位，或如菜花状。

youdao