For language classes, the normal levels are beginning or introductory, intermediate or middle and advanced.

对于语言课程，通常的等级是：初级或入门级，中级和高级。

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For language classes, the normal levels are beginning or introductory, intermediate or middle and advanced.

对于语言课程，通常的等级是：初级或入门级，中级和高级。

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