| 例句 |
You should change or clean your furnace filter once a month to improve performance.你应该每月一次更换或清洁暖气炉上的过滤器以提高其性能。She writes a monthly column for the magazine.她给这本杂志每月一次的专栏撰稿。We meet regularly, once a month.我们定期见面，每月一次。Kidscape runs monthly workshops for teachers.基德斯克普负责组织每月一次的教师研讨班。The monthly meeting is today.今天有每月一次的例会。 |