astronomical /ˌæstrəˈnɒmɪkəl/ TEM4

• 1. 

  ADJ If you describe an amount, especially the cost of something as astronomical, you are emphasizing that it is very large. 天文数字般的 (数量，尤指花费) [强调]

  例：

  Houses in the subdivision are going for astronomical prices.

  该小区里的房子在以天价出售。

• 2. 

  ADJ Astronomical means relating to astronomy. 天文学的

  例：

  ...the American Astronomical Society.

  …美国天文学会。