One of the Most Helpful Inventions
As we all know, paper is one of the four most important inventions in ancient China. It was invented in the Western Han dynasty by Cai Lun. After he had done many experiments. Cai Lun made paper with bark, ropes, rags and so on. It is a great contribution to the world.
Nowadays, paper is very useful in our work, study and daily life. We can use it to write, paint, print books and so on.
Thanks for the invention of paper. It has made our life more colorful.
伟大的发明
大家都知道，纸是中国古代四大最重要的发明之一。它是在西汉由
蔡伦发明的。之后，他做了很多实验。蔡伦有树皮，绳子，破布等制成的纸。这是对世界的巨大贡献。
如今，纸是我们的工作，学习和生活非常有用。我们可以用它来写，油漆，印刷书籍等。
感谢纸的发明。它使我们的生活更加丰富多彩。
追问谢谢