与去年同期比较，开销增加了。

Spending has increased year on year.

《牛津词典》

第一季度的亏损与去年同期比较差的不愉快的时期。

The first quarter losses compare unfavourably with last year's unhappy period.

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这两个时期用于提供与去年的同期比较，这对于财务分析十分重要。

These two periods are used to provide year-over-year comparisons, which are very important in financial analysis.

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