Learning online offers us a lot of opportunities that we have never seen before at school, and learning online still allows us to absorb the full amount of knowledge as if we were in school. Firstly, we can stay at home to learn and it is a comfortable place for us acquire knowledge. Learning online helps us grasp the lecture better because the teacher will speak or record the lecture through the mic and when listening to the lecture, the sound will be very clear and easy to hear. In addition, we do not have to worry about study time because learning online is flexible. Teachers also provide us with flexible lessons to meet our needs. The last advantage is that we can store study materials by recording our lessons. Moreover, teachers often record lectures and upload them to the school's intranet, so we can easily review the lectures at any time.