2--My friend's 40th birthday is this weekend.
 
1--As a present, I think I'll get her a funny "Over the Hill" T-shirt I saw at the store this weekend.
 
2--Are you serious?
 
1--I don't care how funny it is.
 
2--Nobody wants to think of themselves as over the hill.
 
1--You're right. I know.
 
2--Instead, I'll get her a "Life Begins at 40th" coffee mug!
 
1--Over the Hill means someone or something is old and does not have much value.
 
2--The saying often is used jokingly for someone who is turning 40 years old, because they are at the middle of their life.
 
1--It can be a rude thing to say to someone, even a friend!
 
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注解：
 
1.present礼物
2.value价值
3.jokingly开玩笑地

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译文：

1--使用这个俗语的时候要注意了：OVER THE HILL
2--我有一个朋友本周末四十岁生日。
1--作为礼物，我打算送她一件印着 "Over the Hill" 的趣味T恤，周末逛街的时候看到了。
2--你是认真的吗？
1--我没觉得这有多好玩。
2--因为没有人希望自己在走下坡路。
1--是这样的，我明白。
2--我不会这样做，我打算送她其它的礼物，就是一个印有“生命始于四十”的咖啡杯。
1--Over the Hill指的是，人变老或者东西变旧了，开始走下坡路，不再有价值。
2--人们总是爱拿这句话开玩笑，尤其是在人们迈入40岁的时候，因为他们已经进入中年时期。
1--对别人说这句话很不礼貌，就算是朋友也不该说！