1. Users will be able to use their handhelds to look up timetables on the net, search for a local hotel, and check their bank accounts. 用户将能够使用掌上装置查阅网上时刻表,搜索当地旅馆并核对他们的银行账户。
2. You can look up people around you. 你可以拜访你周围的人。
3. I look up the night sky. 我仰望夜空。
4. Most people never look up at the sky. 大部分人从不仰望天空。