英语单词dangerous和 risky的区别和用法?

dangerous adj.involving or causing danger （有）危险的 ,陷入危险或导致危险的
eg.a dangerous animal /road / illness 危险的动物、道路、病症
dangerous driving 危险驾驶
a dangerous situation 危险的局势
反义词：safe harmless
risky :involving the possibility of sth.bad happening 有风险的,（爱）冒险的 ,大胆的
eg.All business activities are inherently risky .
所有的商业活动本质上都有风险
potentially risky 有潜在危险 politically risky 有政治危险