• 在每个周末

onprep.在 ... 之上；由 ... 支撑着；在（某一天）；关于；基于adv.穿着；向前（移动)；表示持续性adj.表示已连接、处于工作状态或使用中；发生；值班Onica奥尼卡

1. The exhibition is open on weekends.
   展览会每逢周末开放。
2. Eric earned his bread and butter as a bookkeeper, but added a little jam by working with a dance band on weekends.
   埃里克以当簿记员来维持生计，且利用周末当舞会伴奏赚些外快。
3. Do the shops stop open late on weekends?
   这些店铺周末营业到很晚吗？
4. For extra money, she tutors on weekends.
   为了多挣些钱，她在周末当家庭教师。