1. 她覺得很難理解他。
   She found it difficult to understand him/found him difficult to understand.
2. 他對他扮演的角色理解得細微之至。
   He understands his part to a miracle.
3. 她簡化了指令以便于兒童理解。
   She simplified the instructions so that the children could understand them.
4. 他們的艱難得到老師的理解。
   Their hardness was understood by the teacher.
5. 為了我們理解，老師列舉了很多事例。
   The teacher enumerated many examples to us for understanding.
6. 如果你不會做這件事的話，我可以理解。
   If you can't do it, I will understand.
7. 他理解能力強。
   He is quick to understand.
8. 我不完全理解他離開的理由。
   I don't fully understand his reasons for leaving.

理的英語翻譯：

解的英語翻譯：