英语新闻：西班牙葡萄牙上空现蓝色流星

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      Stargazers in Spain and Portugal were stunned1 on Saturday night as a glowing fireball shot overhead and turned the night sky a greenish-blue.

      A number of excited witnesses of the event uploaded stunning2 footage on social media, and now the European Space Agency has provided details on the flying object and its journey.

      The ESA said: "It appears that this object was a small piece of a comet.

      "We estimate that it flew over Spain and Portugal travelling at ~45 km/s before burning up over the Atlantic Ocean at an altitude of ~60 km. The likelihood of any meteorites3 being found is very low."

      The ESA previously4 said its Planetary Defence Office was analysing the size and trajectory5 of the object to assess the chance that any material made it to the surface.

      It added that the meteor, caught on camera at around 10:45pm, was "not tracked or reported prior6 to impact".

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      单词标签: stunned  stunning  meteorites  previously  trajectory  prior 

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      1stunned [stʌnd]   第8级

      adj. 震惊的，惊讶的 动词stun的过去式和过去分词

      参考例句：

•       The fall stunned me for a moment. 那一下摔得我昏迷了片刻。
•       The leaders of the Kopper Company were then stunned speechless. 科伯公司的领导们当时被惊得目瞪口呆。

      2stunning [ˈstʌnɪŋ]   第10级

      adj.极好的；使人晕倒的

      参考例句：

•       His plays are distinguished only by their stunning mediocrity. 他的戏剧与众不同之处就是平凡得出奇。
•       The finished effect was absolutely stunning. 完工后的效果非常美。

      3meteorites ['mi:tɪəraɪts]   第9级

      n.陨星( meteorite的名词复数 )

      参考例句：

•       Small meteorites have left impact craters all over the planet's surface. 这个行星的表面布满了小块陨石留下的撞击坑。 来自《简明英汉词典》
•       One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites. 地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的。 来自《简明英汉词典》

      4previously ['pri:vɪəslɪ]   第8级

      adv.以前，先前（地）

      参考例句：

•       The bicycle tyre blew out at a previously damaged point. 自行车胎在以前损坏过的地方又爆开了。
•       Let me digress for a moment and explain what had happened previously. 让我岔开一会儿，解释原先发生了什么。

      5trajectory [trəˈdʒektəri]   第12级

      n.弹道，轨道

      参考例句：

•       It is not difficult to sketch the subsequent trajectory. 很容易描绘出它们最终的轨迹。
•       The path followed by a projectile is called its trajectory. 抛物体所循的路径称为它的轨道。

      6prior [ˈpraɪə(r)]   第7级

      adj.更重要的，较早的，在先的；adv.居先；n.小修道院院长；大修道院副院长

      参考例句：

•       The duty to protect my sister is prior to all others. 保护我的妹妹是我最重要的责任。
•       I took up one-year prior course in German in this college. 我在这所大学读了一年的德语预科。