The legislation will be difficult to enforce.
这一法规将难以实施。
Scuff marks from shoes are difficult to remove.
鞋上的擦痕很难去除。
It's difficult to assess the effects of these changes.
这些变化带来的效果难以评估。
In practical terms this law may be difficult to enforce.
从实际的角度来看，这项法律可能难以执行。
Incumbent officeholders are difficult to defeat at the polls.
现任官员很难在选举中被击败。
Emily's mercurial temperament made her difficult to live with.
埃米莉脾气反复无常，很难与她相处。
Government forces have found it difficult to pacify the rebels.
政府军发现难以平定叛乱分子。
Graduates are finding it more and more difficult to find employment.
毕业生感到找工作越来越难。
He had got himself into a hole and it was going to be difficult to get out of it.
他使自己陷入了困境，难以摆脱。
It's difficult to reconcile the demands of my job and the desire to be a good father.
协调我工作的要求与我当个好父亲的愿望很难。
She found it difficult to get on with her, possibly because of the difference in their ages.
她觉得很难与她相处，这可能是因为她们年龄上的差距。
It's difficult to persuade my husband that it isn't a slight on him that I enjoy my evening class.
很难劝说我丈夫相信我喜欢去上夜校课程并不是对他的冷落。
It became difficult to promote conventional ideas of excellence without being instantly accused of elitism.
倡议传统优秀价值观，很难不立刻招来精英主义的指责。
Mary complains that it has been difficult to find experienced candidates.
玛丽抱怨很难找到有经验的候选人。
Biofilm communities can harbor bacteria longer and are very difficult to clean.
生物膜群落容纳细菌的时间更长且很难清洗。
Outsiders may then find it difficult to determine your contributions and strengths.
局外人可能会很难确定你的贡献和优势。
Viruses are much more difficult to identify in postmortem analysis than bacteria are.
在尸检分析中，病毒比细菌更难识别。
Agriculture proves very difficult to quantify because of the constantly changing conditions involved.
因为所涉及的条件不断变化，所以农业很难量化。
It's difficult to pump facts and figures into tired students.
把事实和数字硬灌输给疲惫的学生太难了。
It is difficult to quantify an exact figure as firms are reluctant to declare their losses.
很难确定一个准确的数字，因为各家公司不愿公布它们的亏损情况。
It's difficult to do it right.
很难把它做好。
It's not difficult to help people.
帮助别人并不难。
It's difficult to be friends with everyone.
很难和每个人都成为朋友。
They are difficult to recognize and find.
它们很难被识别和发现。
English is difficult to learn at the beginning.
英语刚开始学起来很难。
It's difficult to get a ticket of Jay Zhou's concert.
很难买到周杰伦演唱会的票。
Unless you have a car, it's difficult to get there.
除非你有车，否则很难到达那里。
His mother found it difficult to support the large family.
他母亲发现很难养活这个大家庭。
Why is it so difficult to take that first step?
为什么迈出第一步如此困难？
In large cities, people complain it is difficult to breathe.
在大城市，人们抱怨呼吸困难。
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