Module 4 Great inventionsTranslate the following 161. for ages 2. a couple of 3. see to sb. sth 4. looks through 5. be made of from 6.make a book 7. in those days

单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级Inventors and inventionsUnit 3 module 8 thepass paper The Four Great Inventions Printing Gunpowder Extension of Foot Thomas Edison invented th