建议你定期锻炼。

It's recommended that you take ___regular exercise.

在这个城市的这个区域，暴力是常有的事。

Violence is a ___regular occurrence in this part of the city.

他的女朋友是我加入的那个新俱乐部的常客。

His girlfriend is a ___regular member of that new club which I have joined.