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crab nebula

C 开头单词

同根派生

     

英汉例句

  • Its remnants form the Crab Nebula.
    它的残余物组成了蟹状星云。
  • Today, the Crab Nebula is still expanding and it will eventually dissolve in the interstellar gas cloud nearby.
    蟹状星云仍然在膨胀最终会溶入星际物质而消散。