1.When answering this question, you should clearly describe the challenge you faced, such as what it was, when and where it happened. 2.Explain why you thought it was a difficult challenge, you can mention the obstacles you encountered, the skills or knowledge required, and the pressure you felt. 3.Share your feelings and thoughts during the challenge, and how you overcame it or what you learned from it. This will make your answer more personal and engaging.

1. 在回答这个问题时，您应该清楚地描述您面临的挑战，例如它是什么，何时何地发生的。 2. 解释为什么您认为这是一个困难的挑战，您可以提到您遇到的障碍、所需的技能或知识，以及您感受到的压力。 3. 分享您在挑战期间的感受和想法，以及您是如何克服它或从中学到的。这将使您的答案更个人化和引人入胜。