为了更好地理解对话，我们需要了解一下关键词和短语。
In order to better understand it, let's take a look at the key words and phrases here.
选择你感兴趣的内容来练习听力和阅读，找到能理解听力和阅读内容的关键词和短语。
Choose content of interest, that you want to listen to and read. Seek out the words and phrases that you need to understand your listening and reading.
例如，3页的文件使你可以在其中包含更多相关的关键词和短语，这将有助于提高你在系统中的排名。
A 3-page document, for instance, may allow you to include more relevant keywords and phrases, which could move up your ranking in the system.
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