1. There are many contents in college classes, so students need to take notes. Taking pictures with a mobile phone can save time. At the same time, university teachers will arrange some group assignments, which require teamwork and communication by mobile phone is more convenient.
2. It's also good for universities to study with mobile phones. Modern mobile phones have many functions, besides making phone calls, they can also take photos, record and video, write blogs and read e-books. College students can read e-books on their mobile phones in their spare time to increase their knowledge.
Mobile phone is a communication tool with mobility and versatility. It has many functions, such as communication, entertainment, taking photos, office and so on, and is an indispensable part of people's lives.