Other features include turn-by-turn navigation, hands-free calling, help locating a stolen vehicle, roadside assistance and various emergency services.
其它特性包括转弯导航、免提呼叫、锁定被盗车辆、路边援助以及各种紧急服务。
Maps and turn by turn navigation are great, although the speaking voice of the turn by turn is just awful.
地图和语音导航棒极了，不过语音听起来很糟糕。
This series of apps offers some advanced features beyond just turn-by-turn navigation, but that's the main selling point, so we doubt they'll see many more sales.
这一系列的软件提供一些高级的，不基于街角到街角的导航功能，但导航功能依然是主要的卖点，所以我们怀疑这些软件能不能有很好的销量。
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