It was the first time for the freshmen to attend an American professor's lecture, and they had trouble understanding what he was talking about for the first twenty minutes.
这是大学一年级新生第一次听美国教授的讲座，他们在头20分钟里听不太懂他在说什么。
It was the first time for the freshmen to attend an American professor's lecture, and they had trouble understanding what he was talking about for the first twenty minutes.
这是大学一年级新生第一次听美国教授的讲座，他们在头20分钟里听不太懂他在说什么。
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