书籍是通往宇宙的钥匙。
"Books are the keys to the universe."
The beauty of science lies in its ability to explain the natural world through observation and experimentation.
食品安全是企业的生命线,任何时候都不能放松。
I think it would be a disaster. The extraterrestrials would probably be far in advance of us. The history of advanced races meeting more primitive people on this planet is not very happy, and they were the same species. I think we should keep our heads low.