单词：initial main sequence star
单词：initial main sequence star 相关文章
Editors note: This is the third episode of four-part series on verb tenses. Be sure to listen to part one and part two first. For VOA Learning English, this is Everyday Grammar. Today we are going to talk about the perfect verb tenses. Perfect tenses
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Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in
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Model 2 What did you think about the movie? John: So what did you think about the movie? Laura: Well I think this Star Wars episode is an excellent piece of work, but not as good as the previous ones. John: Really? But I think this Star Wars episode
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A Chinese spice that increases the flavour of food has become the centre of public attention, thanks to the growing profile of bird flu . Star anise, a herbal fruit mainly grown in China, as well as V
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Now the Sun will be burning hydrogen as the stars doing in the main sequence until the hydrogen is exhausted in the core, and at that point the stars start to die, the outer layer of the Sun will expand, the Sun will move away from the main sequence
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