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- The church bell tolled the hour. 教堂的鸣钟报时。
- The machine must break down at this busy hour. 正忙的时候，机器偏偏又坏了。
- She spent an hour in quiet contemplation. 她静静地沉思了一个小时。
- 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。
- Navigation is difficult on this river because of the hidden rocks. 因为河上有暗礁，所以在这条河上航行很困难。
- The rush hour traffic is murder. 交通高峰时间真是难以忍受之事
- It was difficult to tell his exact age. 很难判断他到底多大岁数。
- He trudge three hour in the snow to get back home. 他在雪中跋涉三个钟点才回到家。
- He worked very fast, insomuch that he was through in an hour. 他工作得很快，一小时内便做完了。
- It is difficult to express it in terms of science. 要用科学的字眼来表达它是很困难的。
- It was difficult to gauge how people would respond. 大家的反应如何难以估计。
- She handled a difficult argument skilfully. 她巧妙地应付了一场艰难的辩论。
- He can fling off a poem in half an hour. 他可以在半小时之内草就一首诗。
- It took him half an hour to finish the work. 他花了半个小时做完这项工作。
- He talked to us for an hour and then withdrew. 他跟我们谈了一小时的话就走了。
- He find it difficult to give shape to his idea. 他觉得很难把他的想法，明确表达出来。
- She was kept in for an hour for talking in class. 她因上课说话被罚留校一小时。
- It is difficult to decide between the two opinions. 在这两种意见之间抉择是困难的。
- Father must take his pill on the hour. 父亲必须在每点钟准点吃药丸。
- It is difficult to keep on terms with such a man. 很难和这样的人保持友好关系。
