1.To put it other way, the question of the essence of space is mere speculation, the secrets stay buried at the end of the world.
也就是说，一切的关于空间的本质的问题将只能是猜测，空间的秘密将被雪藏至世界的尽头。
2.Mere speculation to the next sentence, this approach before unheard, and I think this is equivalent to judicial suicide.
仅凭推测来下判决，这种做法前所未闻。我认为这相当于司法的自杀。
3.To listen to mere speculation in such a case were criminal.
对付这样一个问题单纯听信猜测是错误的。
4.Scientists insist on empirical results, not mere speculation, to support their theories.
科学家们继续坚持用实验得出的结果来支持他们的理论，而不依靠是纯思维的结果。
5.Overall, these reports are mere speculation.
总体来看，这些报道更多的是猜测。
6.Whether or not he will get the job is mere speculation.
他到底能否得到这份工作只是推测而已。
7.I must emphasize that these ideas are NOT mere speculation. We know they can work.
我必须强调指出，这些想法不仅是单纯的设想，它们确实是行之有效的。