如果你愿意，我们可以回到那个山洞。
我不知道第三次世界大战会使用什么样的武器，但是我知道第四次世界大战会使用木棍和石块。
The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.
The pig farming industry must rely on technology and talent for high-quality development.