smart mobilephone的用法和樣例：
例句
- The famed red phone to call the Russian premier in the event of a national security emergency could now be replaced by a red smart phone.
白宮有台著名的紅色電話機，當國家安全面臨危機時可以通過它跟俄羅斯總理通話，如今完全可以用紅色智能手機取而代之。 - The struggling Silicon Valley smart phone pioneer began selling its own high-end, touchscreen phone in the US over the weekend.
上周末，矽谷先鋒智能手機努力開始在美國銷售自己的高端觸摸屏手機。
