从句用的不错,但有几处从句错误;全文结构较为严谨;作者能较熟练地使用丰富的词汇,但请加强单词拼写的检查;请注意分段。
It's necessary for us to know how to say "no"in every situation in our life.When someone ask for help,we should be willing to help them,but sometimes we should say "no" if person can help himself.Asfar as i'm concerned, because of there are some people are warm-heart,they always don't say "no",i think we should keep a center atitude,we should know the disadvantage of the not say "no".If one person don't say "no",others always depent on him,so he does not learn think of himself.What's worse,he doesn't live indepently. So,don't be afraid to say "no".