把一篇英语文章翻译成中文。
"What is machine learning?" you may ask. Well, it's quite simple really. Machine learning is when computer programs use algorithms to automatically improve their performance at a task, without being explicitly programmed to do so.
“机器学习是什么？”你可能会问。嗯，其实很简单。机器学习是指计算机程序使用算法自动提高其在某个任务上的表现，而无需明确进行编程。