Write an application in advance

This application is for my sister. Because I want a digital camera. In general, it is only necessary for me to provide sufficient reasons to agree to buy things. So first draft a draft here and then mail it to you.
I. Digital Cameras can meet my professional needs. If you are studying civil engineering, you need to study and organize the buildings you see. There is a digital camera that can be well illustrated and compared with pictures, which is conducive to memory and collection.
2. It is helpful for learning. First, you can use a camera to collect and organize the contents of some books or newspapers, saving you a lot of trouble and facilitating searching when necessary. There is no possibility of log confusion. Then, you can take a picture of the old handouts in the classroom (for the content that is never copied, And the content on the blackboard ). It is advantageous for learning.
Third, it is also the final. When you go out, you can take a lot of charming scenery. You can easily recall to favorites.