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- It must be difficult to play various personae in the same movie. 在同一個電影中扮演不同的角色肯定不容易。
- Navigation is difficult on this river because of the hidden rocks. 因為河上有暗礁，所以在這條河上航行很困難。
- It was difficult to tell his exact age. 很難判斷他到底多大歲數。
- It is difficult to express it in terms of science. 要用科學的字眼來表達它是很困難的。
- It was difficult to gauge how people would respond. 大家的反應如何難以估計。
- She handled a difficult argument skilfully. 她巧妙地應付了一場艱難的辯論。
- He find it difficult to give shape to his idea. 他覺得很難把他的想法，明確表達出來。
- It is difficult to decide between the two opinions. 在這兩種意見之間抉擇是困難的。
- It is difficult to keep on terms with such a man. 很難和這樣的人保持友好關係。
- It is difficult to stamp out all the crimes. 很難把所有的犯罪都消除掉。
- It's difficult raising a family on a small income. 依靠微薄的收入是很難養家的。
- He is unable to do such a difficult job now. 他現在還不能做這樣困難的工作。
- She can play the most difficult piano music by ear. 她能不看樂譜，光憑聽覺記憶彈奏最難的鋼琴曲。
- The past month has been a difficult one for him. 上個月他很困難。
- The stain on his shirt is difficult to clean off. 他襯衣上的污點很難去除掉。
- Space exploration is still in its infancy. 宇宙探索仍處於初級階段
- She fended off the difficult questions skilfully. 她巧妙地避開了那些不好回答的問題。
- It was difficult to clamber the mountain. 爬上那座大山是困難的。
- Eels are long and difficult to catch. 鱔魚很長而且很難抓住。
- The problem is considerably difficult to us. 對我們來說這個問題相當難。
