请教一下
It was pretty obvious that whoever these guys were,they were here to help.
翻译:很明显地不论这些人是谁,他们是来帮忙的
问何此句中的whoever可以用在此处?它在此句中所用的文法是?
是关代吗?看起来不是，因前面已有关系代名词that
或是等于no matter who?但后面接these guys(主词)好像也说不通
可以请大家指点我一下吗?谢谢

就是指非常明显的这件事