ile:高频词-List 1.pdf file:LIST 7.mp3 file:ART PART 1.mp3 file:ASTRONOMY.mp3 file:PHYSICS&CHEMISTRY.mp3 file:OFFICE HOUR.mp3 file:EARTH SCIENCE.mp3 file:专业词-讲座部分（Art 艺术）.pdf file:专业词-讲座部分（Physics & Chemistry 物理与化学）.pdf file:专业词-讲座部分（Earth Science 地球科学）.pdf