without dead zones
没有死区
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It all works offline too, which should extend battery life and keep that navigation humming even while puttering about in data dead zones without racking up international roaming charges (take that, Google).
ENGADGET: Nokia offering free turn-by-turn navigation on smartphones globally (updated)
应用推荐
模块上移
模块下移
不移动