frequently变形

变形词有frequent 频繁的frequence 频繁frequency 频繁性frequencies 频率，例如：

1、Buses run frequently between the city and the airport.公共汽车频繁地来往于市区与机场之间。

2、His name features frequently in the social columns of the tabloid newspapers.他的名字频繁地出现在各种小报社会专栏的显著位置上。

3、Save data frequently.资料要经常存盘。