常見的英語是common; familiar.
壹、相似短語
as often as not 經常,時常,往往、as often as 每當,每次、often and often 經常,常常,每每,屢次三番、quite often 經常，常常、as is often the case 這是常有的事、how often 多久；多常；多久壹次、very often 常常、all too often phr. 時常、once too often 又壹次, 再壹次, 次數太多、every so often adv. 偶爾，時常。
二、相似單詞
1、時常，常常，多次often adv.?
2、句子副詞在許多情況下。
3、all too often 老是，總是，壹而再再而三。
4、often fatal a. 通常都是致命的 參考例句： Hantavirus is an often-fatal disease that can spread from rodents to people.