persistent train造句

例句与造句

1. when one sees a meteor, he should say yes and plot the meteor s path on the star-map . he should then tell his partner the magnitude, duration, colour, whether the meteor has exploded or has a persistent train
   当观测者观测到流星出现时，便叫一声有，并把流星在星空的轨迹画在星图上，随后便对记录者说出流星的光度延续时间颜色和是否有爆炸及馀迹。
2. It's difficult to find persistent train in a sentence. 用persistent train造句挺难的