So called because of its location as a northern border fief of the duchy of Aquitaine,it became part of the French crown lands in1531.是什么意思_So called because of its location as a northern border fief of the duchy of Aquitaine,it became part of the French crown lands in1531.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句