Because of her deafness she was hard to make conversation with.

由于她失聪，和她交流很困难。

《柯林斯英汉双解大词典》

It is hard to make out what criteria are used.

难以辨清使用了什么标准。

《柯林斯英汉双解大词典》

He had a hard job to make himself heard.

他好不容易才使别人听见他的声音。

《牛津词典》

He said life is sometimes really hard, but you can make it a lot better if you try to prepare for it.

VOA: special.2010.05.16

This decision is also hard to make because when you are a backend technology provider, it's like selling a piece of commodity.

之所以这是一个困难的决定还因为,当作为后台技术提供商时，就像出售一件商品似的。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

I quoted the other day Wallace Stevens saying that poetry should "make the visible a little hard to see."

引用华莱士斯蒂文斯的话来说,诗歌应该模糊事物的本质“

耶鲁公开课 - 文学理论导论课程节选

Moving forward, the Department will encourage even more businesses to make hard commitments to hire veterans and we will actively share the "best practices" we find in veteran hiring.

WHITEHOUSE: Our Top Stories

All sorts of businesses all over the world have good reason to be alarmed at the latest twists in the U.K. debate over the country's membership of EU. Many will already have doubts about investing in the U.K. because of its draconian new immigration laws which make it hard to bring in highly-qualified staff to make up for the U.K.'s chronic skill shortages.

WSJ: The EU Waiting Game Is Over For Cameron

The high cost of running peak-hour services, and the obligation to run trains at anti-social hours to isolated communities, make profits hard to achieve whatever the fares.

ECONOMIST: A better way to fly