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- Judy knows astronomy inside out. 朱迪对天文学非常精通。
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- Radioactive ray is material thing. 放射线是实际的物质。
- Physics and astronomy are cognate sciences. 物理学和天文学是相关联的科学。
- A ray flower or the corolla of a ray flower. 舌状花舌状花或这种花的花冠
- A ray of sunlight pierced the clouds. 一缕阳光穿透了云层。
- I was left without a ray of hope. 我连一线希望也没有了。
- x ray astronomy x 射线天文学
- gamma ray astronomy 射线天文学
- Her visit brought a ray of sunshine into the children's lives. 她的来访给孩子们的生活带来了欢乐。
- 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。
- Ray take a gulp of coffee and rushed out of the room. 雷喝了一大口咖啡，接着便冲出了房间。
- Mathematics and astronomy are cognate sciences. 数学和天文学是互相关联的科学。
- He focused the sun's ray on a piece of paper with a burning-glass. 他用一面凸透镜把阳光在纸上聚成焦点。
- Astronomy inherits from astrology . 天文学是由占星学演变而来的。
- Ray took a gulp of coffee and rushed out of the room. 雷喝了一大口咖啡,接著便冲出了房间。
- One that specializes in astronomy. 天文学家专门从事天文学研究的人
- 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。
