永远有多远。壹旦失去，就是永远。
How far is forever. Once lost, is forever.
How long can happiness eternity last?
根据理解吧，比如可以这样翻：
Happiness is never far away.
上面的has far 晕死…………
How long can eternal happiness last?
Happiness forever has far 就是这句
If happiness is forever,how far is it?
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