短語(yǔ)詞組短語(yǔ)how w often 多久一次;多久……一次;表示How often practise 經(jīng)常練習(xí);如何經(jīng)常做法;如何經(jīng)常練習(xí)How often do TV 多久看一次電視How often do 多久一次How often does sb 某人多久How Often Shoul 學(xué)生多久需要考試一次How often does 正在翻譯How Often You Recover 怎么通常你們恢復(fù)How Often Should 學(xué)生多久需要考試一次 返回 how often