frequency的形容词形式是什么

The program can show us word frequency.

这个程序可给我们显示词频。

Fatal road accidents have decreased in frequency over recent years.

近年来致命交通事故发生率已经下降。

Objects like this turn up at sales with surprising frequency.

这样的东西在拍卖会上出人意料地频繁出现。

The tanks broke down with increasing frequency.

坦克越来越频繁地熄火。