For instance, it does not explain terms like invisible hand, macroeconomics, or demand curve, and may take just six or seven words to explain the theory of comparative advantage.
例如，它不會解釋「看不見的手」、「宏觀經濟學」或「需求曲線」之類的術語，並且可能只用六七個詞來解釋比較優勢理論的內容。