修改一下：We may confront with all sorts of difficulties in our life,but it is very important to know
how to deal with social relations.all sorts of 后用复数； 后一句用it is 结构更通顺.
First,it must be very hurtful to cheat or betray your friends,so we should treat each other honestly.honestly 修饰treat 应用副词形式.
Second,we should go to learn patience,but patience is not cowardice.If someone touches the bottom of your line,you must beat back bravely.someone 应该用单数形式；bravely 修饰动词beat back 用副词形式.