Before joining the University of Karlsruhe in his present position, he was Head of the Transport Division at the German Institute for Economic Research (DIW) from 1986 to 1989.是什么意思_Before joining the University of Karlsruhe in his present position, he was Head of the Transport Division at the German Institute for Economic Research (DIW) from 1986 to 1989.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句