六、英文翻译
The Origin and Development of Highlighter: A Traditional to Modern Marking Tool The origin of highlighter can be traced back to the early 20th century. People began to experiment with using fluorescent substances in ink to create marking tools. Initially, fluorescent markers existed in liquid form, requiring a special pen tip to dip into the ink for writing or marking. Due to technological limitations at that time, the production cost of highlighters was high, and they were mainly used in special fields such as scientific research and industrial manufacturing. With the continuous advancement of technology, the design and manufacturing techniques of highlighters have greatly improved. Breakthroughs in material science and chemistry have significantly enhanced the performance of fluorescent ink, making its color brighter, more durable, and less prone to fading. At the same time, the appearance and structure of highlighters have also changed from the initial simple design to a modern multi-functional, portable tool. Traditional highlighters were mainly made of plastic material with rubber or fiber tips. Their ink was brightly colored but required frequent replacement of the tip or ink during use. The appearance and function of traditional highlighters were relatively simple, mainly meeting the basic needs of writing and marking. In contrast, modern highlighters have more innovations in design and function with the development of technology. New materials are used to make the pen body lighter and more durable. Pen tip designs with sweat-resistant and anti-slip functions make writing more comfortable. Intelligent design also gives highlighters more functions, such as adjustable brightness and support for multiple colors. Moreover, modern highlighters are widely used in education, offices, homes, and other fields, becoming an indispensable part of people's lives. In conclusion, from traditional to modern times, highlighters have experienced a process of evolution from simple to complex and from single to diverse. With the continuous progress of technology and people's pursuit of better quality of life, the design and manufacturing techniques of highlighters will continue to improve and innovate. We look forward to seeing more innovative features and excellent performance of highlighter products bringing more convenience and fun to people's lives in the future.