General relativity has passed every test we’ve thrown at it, even near a supermassive black hole.

音乐是一种不用特定词汇表达的语言。它用情感说话，如果它深入骨髓，那就是在骨髓里。

The development of the drone industry is ultimately to serve humans, not to replace them.

世界的历史是用山脉的语言书写的。