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- It may be difficult to know what to do. 如何行事可能有些困难。
- It may be difficult to do at first. 万事开头难。
- That was no mean feat(= it was difficult to do). 那是伟大的成就。
- She will take some beating,ie It will be difficult to do better than her. 超越她是不易的（要做得比她好绝非易事）。
- She will take some beating, ie It will be difficult to do better than her. 超越她是不易的（要做得比她好绝非易事）。
- It must be difficult to play various personae in the same movie. 在同一个电影中扮演不同的角色肯定不容易。
- Be faced with a real need to do sth. 面临着做某事的真正需要。
- Be the best time of year to do sth. 是一年中做某事的最好时节。
- Entombing the wreckage with concrete, sand or plastic would be difficult to do underwater. 想要在水底下将沉船残骸以混凝土、砂石或塑胶予以埋葬，可不是容易进行的事。
- Sth. Be worth sth. Be worthwhile to do sth. 都含有值得的。
- It will be difficult to live down this humiliation. 这个耻辱忘掉是难以做到的。
- Be difficult to do sth 做某事困难
- These adjustments with the wrist and forearm are difficult to do consistently. 这些用手腕和前臂调整难以一致地如此作。
- It was difficult to tell his exact age. 很难判断他到底多大岁数。
- It was difficult to gauge how people would respond. 大家的反应如何难以估计。
- Take it into one's head to do sth. 突然决定做某事，心血来潮
- It was difficult to clamber the mountain. 爬上那座大山是困难的。
- You will jolly well have to do sth. 你非得去做某事。
- Beginners will feel it difficult to do this job. 初学者做这件事会感到困难。
- It would be difficult to tip the political scales so late in the campaign. 竞选已进行到这么晚的阶段，要想扭转政局是很难办的。
