一周一次的英语是 once a week,两周一次怎么用英语说?
问题描述：
一周一次的英语是 once a week,两周一次怎么用英语说?
答
twice a week
答
once every two weeks或once every second week
答
once every two week
答
twice aweek
答
once for two weeks 或是 once per two weeks
答
once two weeks