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A rise in the level of saving can reduce aggregate activity temporarily but only a sustained high level of saving makes it possible to have the sustained high level of business investment that contributes to the long-run growth of output.
储蓄水平的上升可以暂时减少总体活动，但只有持续的高储蓄水平，才有可能实现有助于产出长期增长的持续高水平商业投资。