When translated as "课程", a lesson typically refers to a specific unit or class that is taught to students in a school or educational setting. It usually involves a teacher imparting knowledge or skills to the students, often following a structured curriculum.
On the other hand, when translated as "教训", a lesson refers to a broader concept of learning from an experience or situation. It is often associated with gaining wisdom or understanding through trials, mistakes, or challenges. These lessons can be applied to future situations, helping individuals grow and develop.
In both cases, a lesson plays a crucial role in learning and personal development. Whether it is in an academic context or in life, lessons help us acquire knowledge, cultivate skills, and gain insight. They allow us to expand our understanding and improve ourselves, leading to personal growth and success.