给出一个英文段落，要求 GPT 挑选出其中的关键句并进行摘要。
英文段落：In recent years, the world has witnessed a rapid development of artificial intelligence, which has been applied in various industries such as healthcare, automobile, finance, etc. The advent of AI has brought about great changes in people's lives, improving efficiency, enhancing accuracy, and optimizing experiences. However, there are also concerns over ethical and legal issues arising from the use of AI, such as privacy infringement, bias, and liability.
关键句摘要： 
- 人工智能（AI）在不同行业得到广泛应用
- AI 带来了改善效率、提高精度和优化体验的变革
- AI 使用涉及到伦理和法律问题，如隐私侵犯、偏见和责任