Forrestor J W.Learning trough system dynamics as preparation for 21st century[OB/OL].http://web.mit.edu/sdg/www.Jay Fortester.hetl.是什么意思_Forrestor J W.Learning trough system dynamics as preparation for 21st century[OB/OL].http://web.mit.edu/sdg/www.Jay Fortester.hetl.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句