1. I think life himself is the biggest mysteries of life. 我想生命本身就是它自己的最大的秘密。
2. As the explorers continue their work, new mysteries are waiting to be discovered. 在探险家继续进行工作的同时,新的谜正等着被发现。
3. Unfortunately, no one has ever detected dark matter directly, and its nature is still one of the biggest mysteries in science. 可惜至今还没有人能直接侦测到黑暗物质,它的性质仍然是科学中最神秘的事物之一。