swift-tuttle造句

例句与造句

1. Perseid meteor shower , associated with comet swift - tuttle , is one of the most spectacular meteor showers throughout the year . its maxima occurs around 12th to 13th august every year . unlike leonids , which has a prominent 33 - year period , perseids is relatively stable
   每年8月12 13日左右是英仙座流星雨的极大期，然而它不像狮子座流星雨般有明显的33年周期，而且每年的英仙座的流星雨雨量都相对稳定，于极大期每小时有70颗左右。
2. It's difficult to find swift-tuttle in a sentence. 用swift-tuttle造句挺难的