同根派生 crab nebula相關(guān)詞英漢例句Its remnants form the Crab Nebula.它的殘余物組成了蟹狀星云。Today, the Crab Nebula is still expanding and it will eventually dissolve in the interstellar gas cloud nearby.蟹狀星云仍然在膨脹最終會(huì)溶入星際物質(zhì)而消散。crab nebula更多例句