to understand this,we must first understand why birds have colors_英语解答

to understand this,we must first understand why birds have colors at all.
please translate it into Chinese,thank you very much.And the "at all 怎翻译?

人气：347 ℃　时间：2020-07-31 09:09:04

解答

为了明白这一点,我必须首先知道鸟儿有颜色的根本原因
我觉得 at all 要翻成根本
但楼上似乎也有道理