他在给一个英语为非母语的外国人讲英语诶…又不是给一个懂任何口音和方言的美国人。
He is speaking to a foreigner whose first language is not English, rather than a native American who can understand whatever accents and local dialect.
我不清楚这是否跟我非母语的英语口音难以被大家理解有关，或者只是因为不同考生的学习风格和偏好不同，当然，也有可能是因为这两种情况都有。
I don't know if it's due to my non-native English accent, which might be difficult to understand at times, or if it's simply the diversity of learning styles and preferences - or both.
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