短語詞組短語twice e a week 一周兩次exercise twice a week 一周鍛煉兩次about twice a week 大約一周兩次;大約一個星期兩次;約一周兩次published twice a week 每周出版兩次Swimming twice a week 每周游泳兩次wash twice a week 一周洗衣兩次taw twice a week 每周二次See twice a week 一個星期見兩次 返回 twice a week