The program can show us word frequency.

　　這個程序可給我們顯示詞頻。

　　Fatal road accidents have decreased in frequency over recent years.

　　近年來致命交通事故發生率已經下降。

　　Objects like this turn up at sales with surprising frequency.

　　這樣的東西在拍賣會上出人意料地頻繁出現。

　　The tanks broke down with increasing frequency.

　　坦克越來越頻繁地熄火。