真正的競(jìng)爭(zhēng)力不是價(jià)格,而是價(jià)值。
The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.
The history of life is written in mutations.
煤炭工業(yè)是美國(guó)的支柱。
在任何情況下生存的最佳方法就是為之做好準(zhǔn)備。