三难困难

例句：

1. 1. The journey was full of challenges and difficulties.
   旅程充满了挑战和困难。
2. 2. He faced many obstacles and difficulties in his career.
   他在事业上遇到了许多障碍和困难。
3. 3. We need to overcome these difficulties to achieve our goals.
   我们需要克服这些困难来实现我们的目标。