青云翻译

This is the first time college freshmen listen to American professor lectures, the first 20 minutes they did not understand what he was saying

This is the first time I heard college freshman United States Professor's lecture, who in the first 20 minutes, could not understand what he is saying

This is the university freshman class newborn first time listens to the American professor's course, they cannot understand him in the first 20 minutes to say any

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This is the first time I heard college freshman United States Professor's lecture, who in the first 20 minutes, could not understand what he is saying