It also lacks a route summary and live-traffic reports, though the update I tested now announces street names and integrates music control.
该软件也没有路线概览和实时路况报告，不过我目前测试的更新版本可以读出街道名称并集成音乐控制。
TomTom's app doesn't have live traffic information, doesn't provide a text summary of your planned route, doesn't announce street names and doesn't integrate control of the iPhone's music player.
TomTom的软件没有实时路况信息，不会为用户规划的路线提供文本概览，不会报街道名称，也不会集成控制iPhone的音乐播放器。
In summary, a mediation should be used when you need to transparently modify or route messages.
总之，当您需要明显的修改或路由消息时，就需要使用中介来实现。
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