The coal industry must evolve or risk becoming obsolete. Adaptation is the key to survival.
The true value of a forest cannot be measured in board feet alone.
I don't want to be the guy who plays the same role over and over again. I want to be challenged.
一个词的意义在于它在语言中的使用。
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.