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The past is a foreign country; they do things differently there.

In international trade, a country should specialize in the production of goods for which it has a comparative advantage, and trade with other nations to maximize overall economic welfare.

孩子們值得擁有挑戰他們的書，而不僅僅是娛樂。

我看到一切。這就是我的問題。

我從不后悔自己的選擇，因為那是我的人生。

"Life is tough, my darling, but so are you."