/prɪˈveɪl/
[I] ~ (in/among sth)to exist or be very common at a particular time or in a particular place 普遍存在；盛行；流行
We were horrified at the conditions prevailing in local prisons.
地方监狱的普遍状况让我们震惊。
Those beliefs still prevail among certain social groups.
那些信念在某些社会群体中仍很盛行。