If we consider merely bodily labour as the cause of wealth, how can we then explain why modern nations are incomparably richer, more populous, more powerful, and prosperous than the nations of ancient times?是什么意思_If we consider merely bodily labour as the cause of wealth, how can we then explain why modern nations are incomparably richer, more populous, more powerful, and prosperous than the nations of ancient times?在线翻译_英语_读音_用法_例句