Today, I am so happy with you to talk about learning cad.About 5 years ago,I began to learn cad, at first when I began to learn, even with the help of the teacher, I can not paint a circle by using cad software, so at that time I almost gave up on myself, it is most painful thing in the world, I do not like it so much, I often made excuse not to go to learn it.

Now I revive it I feel happy to learn, I found a lot of potential in it, if I can devote myself to learning it well maybe I can make a fortune, this is so happy a thing that I like to learn it so much, that is the reason I am working hard on it to realize my dream, it is so important a thing even some unlearned people know about it.