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- He outlined the triangle in red. 他用红笔画出三角形。
- The angles of a triangle total 180. 三角形的三角之和等于180°。
- astronomical triangle 天文三角形
- He was too poor to buy an astronomical telescope. 他太穷了，买不起天文望远镜。
- Astronomical sums of money will be needed for this project. 这项工程需要异常庞大数额的资金。
- The price of this gem is expensive -- as much so as astronomical figures. 这个宝石的价格十分昂贵－－简直是个天文数字。
- His wife was astonished at the astronomical sum of money he had spent. 他的妻子被他花的天文数字的钱款惊呆了。
- They mounted an astronomical telescope on the roof. 他们把天体望远镜装在屋顶上。
- He tried to prove that the triangle was isosceles. 他想证明那个三角形是等腰的。
- He is engaged in astronomical research. 他致力于天文学的研究。
- Our astronomical work is handicapped just now. 目前我们的天文工作受到阻碍。
- He's been offered an astronomical salary. 有人出巨额薪水聘请他.
- An astronomical increase in the deficit. 赤字的巨大增长
- He swept a triangle with his finger. 他用手指在空中画了个三角形。
- Shall we sign a triangle trade agreement? 我们订一个三角贸易协议好吗?
- Astronomical Obscrvatory, St Petersburg ? 圣彼得堡天文台
- The costs of land for building are astronomical. 买地建房的花费很庞大。
- Astronomical Novelty - What is Dark Energy? 天文新知甚么是黑暗能量?
- It at first is an astronomical observatory. 它原先是一个天文台。
- A right triangle has a right angle. 直角三角形有一个角是直角。
