Winning by a narrow margin, Polk campaigned on his strong support for westward expansion, a hotly debated issue that was dodged by other candidates.是什么意思_Winning by a narrow margin, Polk campaigned on his strong support for westward expansion, a hotly debated issue that was dodged by other candidates.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句