常見(jiàn)例句

• The complex nebula is thought to be a supernova remnant over a million years old, sprawling across the southern constellations Vela and Puppis.
  這個(gè)形狀復(fù)雜的星云區(qū)域分布在南天的船帆座和船尾座之間，它被認(rèn)為是一個(gè)超新星殘骸已經(jīng)有一百萬(wàn)年齡。
返回 Puppis