一周一次的英語表示有：once a week；weekly；once each week例句：A maid comes once a week to change towels and clean up.一名女仆一周一次更換毛巾，打掃房間。How many passengers do this airline fly weekly? 這條航線一周能運送多少乘客?Review exercises from previous lessons once each week. 每個星期復習一次前面的課文。