第二个大的领域是应用程序。

A second broad area is applications.

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第二个大的部分，外语教学法。

Second major part, foreign language teaching method.

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如果第一个数比第二个大，就将那两个数调换。

If the first number is higher than the second, switch them.

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第一个比第二个大。

The first is bigger than the second.

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第二个大优点是他擦什么字都是一样，一点儿痕迹都没有。

The second big advantage is that he what word is the same, have no trace.

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第二个大优点是他擦什么字都是一样，一点儿痕迹都没有。

The second big advantage is that he what word is the same, have no trace.

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