The baffling Drake equation reads: N = R* x Fp x Ne x Fi x Fc x L, and helped pioneering scientist Professor Drake to predict that there could be 10, 000 civilisations in our galaxy.
这一令人费解的“德雷克等式”为N =R*xFp xNe x Fi xFc xL，先驱科学家德雷克教授曾利用该公式作出预测：银河系中可能存在1万种文明。
X-Men: : Apocalypse is a sci-fi action film produced by 20th Century Fox Film Corporation of the United States, and directed by Brian Singer.
《X战警：天启》是由美国二十世纪福斯电影公司出品的科幻动作片，由布莱恩?辛格执导。
X-Men: : Apocalypse is a sci-fi action film produced by 20th Century Fox Film Corporation of the United States, and directed by Brian Singer.
《X战警：天启》是由美国二十世纪福斯电影公司出品的科幻动作片，由布莱恩?辛格执导。
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