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昨晚,气温骤降。

Last night, we experienced ___a ___sharp ___drop in temperature.

经济危机导致生活水平急剧下降。

The economic crisis led to ___a ___sharp ___decline in the standard of living.

广告活动之后,销售额急剧增长。

Following the advertising campaign, there was ___a ___sharp ___increase in sales.

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