However, they have a difficult time making changes for many reasons: changes are hard to initiate and even harder to sustain; they take too long; and people resist them.

然而，他们很难有时间进行变革，因为：很难开始变革，也很难维持；他们花费了太长时间；但是人们还是抵抗变革。

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Even those who get to Milan have a hard time gaining admission to see the "Last Supper." Visits have been made more difficult by measures to protect it.

即便能够亲临米兰的人也很难“一睹尊容”，参观标准越来越严格。

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We have had a lot of problems and a difficult time but we are working hard and now in a cup final.

我们遇到了很多问题，有一段时间很艰难，但是我们努力踢球，现在能参加杯赛决赛了。

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Rehabbing his right knee will be much more difficult considering the fact that he will have a hard time putting weight on his other leg.

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Instead all of the disturbance falls on outsiders, who have a hard time finding a job and landowners who find it difficult to profitably develop new areas.

FORBES: The Surprising Thing Is That Homeownership Isn��t More Economically Destructive

Anytime you use unconventional conventions to tell a story, particularly at a time when pop culture is so self-reflective and it's difficult to find a unique voice, I think you are going to have a hard time selling it to people.

CNN: He's 'Jesus' Son'