the international astronomical union (iau), which regulates such matters, decreed on august 24th that the ninth planet was not actually one after all.
负责管理此类事务的国际天文学家联合会8月24日通过决议称太阳系第九大行星事实上并不是一颗真正的行星。
a clear majority of researchers voted for the new definition at a meeting of the international astronomical union (iau) in prague, in the czech republic.
在布拉格的召开的国际天文联合会会议上,有明显多数的研究者投票支持这一新 规则。
the international astronomical union did a little further research and decided that both bodies were too small to be official planets.
国际天体联盟研究它一段时间后决定天因太小而不被称为正式行星。