1. Answer by identifying a subject you found particularly difficult during your studies. 2. Explain why you found it challenging, such as complex concepts, heavy workload, or difficulty in understanding the material.

1. 在你的學習過程中，請指出一個你覺得特別困難的科目。 2. 解釋為什麼你覺得困難，例如複雜的概念、繁重的工作量或是難以理解的教材。