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- The International Workshop on Cometary Astronomy 在英国剑桥的国际彗星天文研讨会
- Judy knows astronomy inside out. 朱迪对天文学非常精通。
- Physics and astronomy are cognate sciences. 物理学和天文学是相关联的科学。
- That comet is invisible to the unaided eye. 那颗彗星只用肉眼是看不到的。
- A comet is at perihelion when it is closest (=very close) to the sun. 彗星最接近太阳时，它就是在近日点。
- Astronomy, as distinct from astrology, is an exact science. 天文学是一门严谨的科学，与占星术完全不同。
- If I had binoculars, I could see that comet clearly. 如果我有望远镜，我就可以清楚地看见那颗彗星。
- Mathematics and astronomy are cognate sciences. 数学和天文学是互相关联的科学。
- The comet's ice, heated by the sun, rapidly and spectacular sublimate to gas. 彗星上的冰块在太阳热的作用下迅速而壮观地升华成气体。
- Astronomy inherits from astrology . 天文学是由占星学演变而来的。
- The central portion of the head of a comet. 彗核彗星头部的中心部分
- One that specializes in astronomy. 天文学家专门从事天文学研究的人
- Why else might the comet have come undone? 是什么导致了慧星的灭亡?
- X-ray astronomy has made impressive progress. X射线天文学已取得了引人注目的进展。
- He is said to be the founder of modern astronomy. 他被誉为现代天文学的奠基人。
- He has a slight acquaintance with astronomy. 他懂一点儿天文学。
- Halley's comet calls on the earth every 76 years. 哈雷彗星每76年造访地球一次。
- He is very interested in astronomy. 他对天文学很感兴趣。
- Physics and astronomy are cognate science. 物理学及天文学为同性质的科学。
- The comet passed by in the twinkling of an eye. 俯仰之间，流星闪过。
