问题描述：
帮我看看这句话（英语高手进）
Back pay in a lump sum can often be used for major purchases or investments.
1.这句话的意思是什么?
2.单独的back pay怎么翻译?
Back pay in a lump sum can often be used for major purchases or investments.
1.这句话的意思是什么?
2.单独的back pay怎么翻译?
问题解答：
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