应该是：This touch is only available on 例句： "This feature is only available to subscribers of google earth plus." “此功能仅提供给谷歌地球增强版的用户.” Declare (information,documents,etc)to be officially secret and available only to certain people 将(资料、文件等)定为官方密件而仅供某些人使用. 自己总结吧 参考资料：金山词霸2009 牛津版
