Translation: Translate the following passage into English. Some sentence patterns, words and phrases are given below to help you perform the task. by no means to what extent full knowledge in grave peril even if... It is a(n) ... fact that It seems unlikely that 我们究竟能在多大程度上认识宇宙呢?这的确是一个值得思考的问题。首先,宇宙绝不是不可知的。如果我们周围的世界变得不可知了,我们就会处于极度危险中。令人欣慰(gratifying)的是,我们生活在其中的宇宙是有规律可循的。即使我们不能完全认识宇宙,我们起码能认识其重要的部分。当然,认识宇宙是一个漫长的过程,似乎不可能在短时间内完成,需要一代不懈(untiring)的努力。