2--Really? That's nice.
 
1--He usually keeps me posted.
 
2--I've been completely out of touch with my old friends.
 
1--It's hard to keep up contact when people move around so much.
 
2--Yes, people just seem to drift apart.
 
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注解：
 
1.buddy朋友
2.posted把(信件等)投入邮筒 
3.contact联系 

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译文：
 
1--我刚收到高中老朋友的一封信。
2--真的？那太好了。
1--他常给我写信。
2--我和我的老朋友已经完全失去联系了。
1--大家经常搬家，保持联系很难。
2--是的，大家似乎疏远了。