难辨别地

例句：

1. 1. The task was so difficult that I couldn't finish it on time.
   这个任务太难了，我无法按时完成。
2. 2.It's difficult to find a suitable job in this field.
   在这个领域里找到合适的工作很难。
3. 3. He had a difficult time convincing his parents about the importance of education.
   他很难说服他的父母教育的重要性。