[介绍通信工具的作文]直到现在，已经有许许多多的通讯工具了，比如说：手机、电话机、对讲机等等。但是，你们却不知道，在它们的背后，是一位位科学家勤劳的汗水。 在过去，人们也用电话机、手机、对讲机等等...+阅读

With the development of the technology ,there are plenty of ways of transportation all around the world,for instance:cars,bikes,flights and so on.They make our lives become more convenient and easier,however,i am interested in riding a bike.it is a great way to protect the environment and it can save petrol resources.in addition,it can not only eacape lots of the traffic problems.but also it is a good way to do excierse and keep healthy.i love riding bikes.

Comparing to all means of transportation,I prefer to take a flight.Maybe some people argue that take a plane is the most dangerous path of travel around.They recommend that train is saver and shipping is cheaper.However,from my part of view,while taking a train we exchange comfort for safe.In the same way,we exchange time for cheaper while shipping.A bit more dangerous as it is,taking a flight is much more comfortable and faster.In case of these,I choose flying as my best choice.

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