Apple released iOS 7.1 Monday, the first significant update to the mobile operating system it debuted on Sept. 18, offering some incremental feature improvements and fixing some bugs that annoyed iPhone and iPad users.苹果公司(Apple)周一公布了iOS 7.1操作系统,这是去年9月18日移动操作系统iOS 7公布以来第一次根本性改版。
