过去是一个异国他乡;他们在那里做事的方式不同。
The past is a foreign country; they do things differently there.
每个国家都有责任保护我们的海洋,无论其海岸线大小如何。
The only thing you absolutely have to know is the location of the library.
在量子场论的领域中,真空并非空无一物,而是充满了虚粒子的沸腾大锅。