标签：话题作文 话题 英语四级作文
字数：1500字
提要：Mobile PhonesA mobile phone has no wires and can be carried about in your pocket or your bag. It is smart. If you need to ring someone, you just press the numbers and the phone will connect you to the right number. You can take it with you wherever you go.A cordless phone also has no wires. It can be useful in the office or the factory. Imagine that you are working in an office and a suctomer call..