1、一周一次onceaWeek，一周两次twiceaweek，一周三次threetimesaweek。2、week英［wiːk]美［wiːk]。n.周；星期；礼拜；一周；七天的时间；（除
US-USDA’sAgriculturalMarketingServicepublishedtheirweeklyActualSlaughterUnderFederalIns
US-TheaverageweightofbarrowsandgiltsreportedbytheUSDAlastweekwas211pounds,abouta
US-Thisweekshogslaughtertotaled2.531millionhead,up3.2percentfromlastweek,up5.7per
