Definition of good friends

What kind of friends are called "true friends"?
Friendship plays a very important role in our life. Good friends can make your life wonderful and colorful. However, bad friends can harm you in many circumstances unconsciously. Most people are confused about the definition of true friendship but I have some definitions for it.
Firstly, good friends will accompany you when you feel lonely. If you are unhappy, he/she will be the first one to discover you are in the pouts and in low spirits. When you feel helplessness, he/she will tickle you with his/her funny actions, comfort you, and give you his/her truly suggestions. Besides, if you want to pour out your heart, good friends are willing to be the listeners and to stay with you whenever you need them. Finally, if most of the people do not believe you anymore, yet someone is still willing to believe you, that is a true friendship.
In fact, you need friends anytime, this "true friends" especially.

The competition of Mac and Window

It is a age with developing science and technology.We can't live without computer. I will compare two kinds of computer operating system, MAC and Windows. First, MAC and Window use the different compatible software.Developing the software for Window is more than Mac.The MAC emphasizes in the painting.If you work on an art work,you had better use it.It's good for learning art designing.The Window is used by a universal family.And it's software compatibility is also higher.Anyone can use it simply.MAC is more expensive than Window,and it's design also more advanced.So that is why more and more people want to buy it. No matter which system you choose, both of them are the good tools which helps us to obtain knowledge!

Teenagers should do more exercise

Nowadays, people have a hustle and bustle life everyday. Many parents don't spend their time to accompany children on weekends. As a result, the physical vigour and health of puberty teenagers deteriorated. Teenagers love to stay at home watching TV or surfing the net, and they become weekend couch potatoes gradually. Without exercise, many teenagers become ill with problem as obesity and accidie. These physical diseases had a great effect on health. Furthermore, exercise helps people keep a good mood. As long as they have a healthy body and mind, they will have a positive attitude towards life without a doubt .