商務信函基礎basic: Basic = Basic English. business: n. 1.事務,業(yè)務;事,事業(yè),行業(yè),工作。 2.實業(yè); ...letter: letter2 n. 1.字母,文字。 2. ...business letters (commercial letters ): 商業(yè)尺牘business letters (commercial letters): 商業(yè)信函下載手機詞典可隨時隨地查詞查翻譯