entfo组成单词
entfo组成单词：often
adv.时常;常常;往往;大多
比较级： more often最高级： most often
例句：
I often think about my friends back home.
我常常想起老家的朋友。
People often share their political views with their parents.
人常常跟自己的父母政治观点一致。
Stress is often a factor in the development of long-term sickness.
心理压力常常是形成长期病的一个因素。
How often do you use the bus?
你多长时间坐一次公共汽车？
