have difficulty

汉语翻译

例句：

1. I know what I want to say but I have difficulty in putting it across.
   我知道我想说什么，但我觉得难以表达清楚。
2. Women who do not ovulate regularly have difficulty in becoming pregnant.
   妇女排卵期不正常就不易受孕。
3. Modern artists have difficulty in finding patrons.
   现代艺术家们很难找到赞助人。
4. The patient was perceived to have difficulty in standing and walking.
   据观察所见，病人站立和行走都有困难。