❶ 魯班是怎樣發明鋸子的ppt
被鋒利像鉅型植物葉子枝幹割傷
突發奇想
❷ 英語作文 傳說早在兩千多年以前巧匠魯班無意中發明了傘一天他在
傳說早在兩千多年以前巧匠魯班無意中發明了傘，一天他在回家的路上遇到大雨急忙躲進了亭子里，他突然有了個想法能不能發明一種活動的亭子來遮陽避雨呢? 傘就這樣誕生了。
The legend says that more than 2000 years ago. Our country's construction genius Lao Ban had invented umbrella accidently. When he was on his way home one day, met a very heavy rain storm. He ran to a gazebo and started thinking and said to himself that will there be a way to invent a kind of mobile gazebo, which can help people to stay dry when raining? So, that's was how the umbrella was invented.
很樂意能夠幫到你，希望會對你有助。
若不明白請繼續問，如滿意敬請採納，O(∩_∩)O謝謝你。
❸ 用英語描述魯班發明了什麼怎麼發明的
What Luban invented, how invention
❹ 跪求美國崛起英文版的PPT，作業來的！！！
去新浪愛問看看吧