科恩：“考试是教师绩效中最客观的数据。

EMILY COHEN: "Testing is probably one of the -- it's the most objective data that we have on teacher performance.

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观望和等待将为我们提供更客观的数据解读。

Waiting and watching from the sidelines will afford us a more objective interpretation of the data as it rolls in.

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这些因素中每一个都可以用客观的数据加以衡量。

Each of these factors can be measured with objective data.

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