文中共有10处语言错误，每处错误仅涉及一个单词。增加：在缺词处加一个漏字符号（^），并在其下面写出该加的单词。删除：把多余的词用斜线（\）划掉。修改：在错误的词下面划一横线，并在该词下面写出修改后的单词。

Dear Li Ming ,

I’m glad to hear for you . You asked me what friendship was . Here are some my thoughts .

First , I think , as a friend , we can brave , loyal and active . Most importantly , true friends should be honest and helpful each other . But sometimes trouble can break down friendship , such as misunderstanding , arguments , fight and so on . If a closely friend hurts you and you don’t understand , don’t angry with him , try your best deal with these problems .

Secondly , in my opinion , a good friend is wealth in someone life .

Finally , true friends should share happiness and sorrow . A good friend is someone who make me happy , too .

I hope you will find true friends .                          

Yours  

Xiao Hua

一个玻璃瓶质量是0.21kg，密度是2.6×．在75cmHg大气压下，温度为27℃时，瓶里盛有空气200．把瓶口向下推入池里的水中，使它自己停留在水中．该处水温为7℃，这时瓶内水面距池里水面的距离为多少？