英语翻译In one view,the relative ability or impact of the facial

英语翻译
In one view,the relative ability or impact of the facial nonverbals may reach 55 percent and the vocal nonverbals 38 percent.
1,'nonverbal'不是形容词么?怎麼可以加's' 2,'and' 的后面为什麽是' the vocal nonverbals' 直接跟' 38 percent‘ 不是应该'the vocal nonverbals may reach 38 percent' 3,请帮忙将这句话翻译成中文,