Many teachers said students should not have mobile phones at school, but if there was a good reason, they could leave their phones at school office.
许多老师说学生不应该在学校使用手机，但如果有充分的理由，学生可以把手机留在学校办公室。
And many mobile devices can display Office files for reading using built-in, free apps; iOS's Preview app is the most capable of these.
同时许多移动设备能够使用嵌入式的免费程序去显示Office文件，iOS的预展程序是这些程序中的佼佼者。
Mobile air conditioning: suitable for local refrigeration, can use in many occasions: the kitchen, sitting room, site, office, etc.
移动式空调：适用于局部制冷，可使用在许多场合：厨房、客厅、工地、办公室等。
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