The U.S. trade triangle, showing its exports, imports, and terms of trade, is denoted by triangle BCD in figure 2.7.是什么意思_The U.S. trade triangle, showing its exports, imports, and terms of trade, is denoted by triangle BCD in figure 2.7.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句