ChatGPT, an AI-powered text-based artificial intelligence tool, has revolutionized the ways students learn with the personalized recommendations and guidance it provides and its access for students to a wide range of resources where they can produce more coherent or fine-tuned written content or improve their academic performance in specific areas. However, the use of ChatGPT also manifests the pitfalls in terms of its likely misinformation, inaccuracies and biases. One of the major concerns that educators raise is related to the potential plagiarism which students may use ChatGPT to create and generate essays or theses with just offering certain questions or prompts and the ownership of the generated products clearly does not belong to the student but the tool itself. Please write a well-constructed essay to define ChatGPT first, exemplify its use from a university student's perspective and discuss the pros and cons of its use at the tertiary level in Taiwan. The number of the words should be between 500 to 800. (100%)