1. every so often
   adv.偶尔,时常
   
2. more often than not
   经常,通常,往往,大半
   

1. I often get letters that addressed to my namesake David.
   我经常收到寄给和我同名的David的信
2. I often travel as a pastime.
   我常常以旅行作为消遣。
3. In poetry the rose is often a metaphor for love.
   玫瑰在诗中通常作为爱的象征。
4. Gonorrhea. Often used with the.
   淋病。通常与the连用
5. They often indulge in playing cards.
   他们常常沉迷于玩牌。

　2个副词解释