"作业应包含常规和惊喜的元素。"

Simplified Meaning:

When you have tasks to do, it's good to have a mix of things you expect and things that are new or different. Routine elements are the parts you are familiar with, which give you stability and help you feel comfortable and confident. Surprising elements are the new, unexpected parts that keep things interesting and help you learn and grow. Think about cooking dinner. If you cook your favorite meal all the time, it becomes boring. If you try a completely new, complicated recipe every day, it can be stressful. But if you do a bit of both – cook familiar meals but occasionally try new ingredients or techniques – it keeps things balanced. This way, you enjoy the process and also improve your skills. By mixing routine with surprise, you stay engaged and motivated. You feel secure because of the familiar parts, but also excited and challenged by the new ones. This approach can make work, study, and daily life more enjoyable and fulfilling.