on weekends的用法和樣例：
例句
- The exhibition is open on weekends.
展覽會每逢周末開放。 - Eric earned his bread and butter as a bookkeeper, but added a little jam by working with a dance band on weekends.
埃里克以當簿記員來維持生計，且利用周末當舞會伴奏賺些外快。 - Do the shops stop open late on weekends?
這些店鋪周末營業到很晚嗎？ - For extra money, she tutors on weekends.
為了多掙些錢，她在周末當家庭教師。
