The remnant of a supernova called SN 1006 hangs like a gumball 7,000 light-years away in a composite image released by NASA on June 26, 2008.是什么意思_The remnant of a supernova called SN 1006 hangs like a gumball 7,000 light-years away in a composite image released by NASA on June 26, 2008.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句