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[audioFiles]2021m5x/audio_ve01005j_ezflisteningxa_0200_202105[/audioFiles]

游客2023-10-24  14
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答案                                                                              Petroleum
       Petroleum has been important since ancient times. / The Greek historian told of its use in the form of pitch for building and road making. / Petroleum is a fossil fuel. / The liquid comes from the remains of plants and animals / that died millions of years ago. / These remains were buried deep below levels of rock over time and under great pressure. / The modern history of oil started in the middle of the 1800s. / At that time, a method was found to make kerosene fuel from petroleum. / This kind of fuel became popular for heating and lighting. /
解析                                                                              石油
       石油自古以来就非常重要，它是深埋在岩石层下达数百万年的动植物遗体在重压下经年累月形成的。石油的现代史开始于19世纪中期，那时人们已经知道如何从石油中提炼出煤油了。
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