Test scores were mixed, and the school replaced it four years later. But Mr. Jackson continued to use it when he could.

尽管测试成绩喜忧参半，而且学校四年后替换了它，但杰克逊还是只要可能就继续使用它。

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After the laughter died down, Jackson continued.

一阵大笑之后，杰克逊接着说。

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After the laughter died down, Jackson continued.

一阵大笑之后，杰克逊接着说。

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