Re-label the elapsed time column to specify Baseline time.

重新设定消失时间列，以指定基线时间。

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There was an increase in the proportion of women who initiated ART while pregnant but no change in other baseline characteristics over time.

尽管孕妇接受抗逆转录病毒疗法的比例有所增加，但是其他基线特征并没有随着时间的推移而有所改善。

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Based on what we do know, however, both sides are playing big-time budget baseline games.

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One common yardstick of volatility is standard deviation, which uses annualized monthly returns over time as a baseline.

FORBES: Magazine Article

This is hardly the first time politicians have played the baseline game.

FORBES: Washington Plays The Baseline Game On Deficit Reduction