hassel

例句：

1. 1. I have a lot of difficulties with this math problem.
   我对这道数学题感到有些困难。
2. 2. The company faces several challenges in its new product launch.
   该公司在新产品开发中面临几个挑战。
3. 3. He was always a difficult person to get along with.
   他总是很难相处的人。
4. 4. The decision was a tough one for him.
   这个决定对他来说很艰难。
5. 5.We need to tackle the challenge head-on.
   我们需要迎难而上。
6. 6. She was perplexed by the sudden change in plans.
   她对计划的突然改变感到困惑。
7. 7. The conundrum of the case remains unsolved.
   这个案件的谜团仍未解开。
8. 8. The quandary of the situation is still unresolved.
   这种情况的困境仍未解决。
9. 9. He hesitated before making his decision.
   他在做出决定前犹豫不决。
10. 10. Her worries were causing her much perplexity.
    她的担忧使她感到非常烦恼。