COMB in ADJ
（与过去分词连用构成形容词）表示“时常”，“经常”
Oft- combines with past participles to form adjectives that mean that something happens or is done often.
例句
The Foreign Secretary's views on the treaty are well-documented and oft-repeated...
外交大臣就该条约发表的观点有大量记述并被屡屡提及。
It turns out to be a far more irritating poem than its oft-quoted lines suggest.
结果发现这首诗比起它常被引用的那几句来更加恼人。