Once you settle on the best way to get there, you can hit "Start" to fire up navigation mode, at which point Siri starts barking out orders.
ENGADGET: iOS 6 review Mobile
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。