Then we are going to show you some errors and how to correct those errors, what drills to use to correct specific errors.
然后我们要演示一些错误动作及其纠正方法，指明针对某类错误的专项练习方法。
Then we are going to show you some errors and how to correct those errors, what drills to use to correct specific errors.
然后我们要演示一些错误动作及其纠正方法，指明针对某类错误的专项练习方法。
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