单词nicolaus-copernicus
网络: 哥白尼；天文学家哥白尼；尼古拉斯·哥白尼
Nicolaus Copernicus said: "being brave in exploring the truth is hominine vocation.
哥白尼说：“勇于探索真理是人的天职。”
If you were Nicolaus Copernicus , would you have hidden your theory for so many years?
如果你是哥白尼，你会把你的力量掩藏很多年么？
Biographical sketch of astronomer Nicolaus Copernicus
天文学家哥白尼的自传概述