This was a very short visit, but it plunged the little prince into deep dejection.

我相信可互换零件的原理将在未来制造业的进步中发挥巨大作用。

一本书是作者和读者穿越时间的对话。

医学是我的合法妻子，文学是我的情妇。

The American farmer is the only man in our economy who has to buy everything he buys at retail, sell everything he sells at wholesale, and pay the freight both ways.

我宁愿因为做自己而被讨厌，也不愿因为伪装而被喜爱。