1·It's one of the most difficult problems besetting our modern way of life.
那是困扰我们现代生活方式的最棘手的其中一个问题。
—— 《牛津词典》
2·It is very clever of the boy to work out difficult problems.
这男孩很聪明，能解出难题。
3·It can solve some of the most difficult problems we have today.
它可以解决我们今天面临的一些最困难的问题。
4·Helen can quickly work out many difficult problems because he has gift for Maths.
海伦能很快地解出许多难题，因为他有数学天赋。
5·Putting out forest fire is regarded as one of the most difficult problems in the world.
·扑灭森林大火被认为是世界上最难解决的问题之一。
6·Many people today believe that technology is going to help solve some of the most difficult problems we have on Earth today.
今天，许多人相信技术将帮助我们解决当今地球上一些最困难的问题。
7·On the contrary, I like solving difficult problems because I always take them as exciting challenges.
相反，我喜欢解决难题，因为我通常会把这些难题看作令人激动的挑战。
8·Those who are able to solve difficult problems are the ones who are the most valuable to the employer.
那些能够解决难题的人是对雇主最有价值的人。
9·Don? T duck the most difficult problems.
不要逃避最艰难的问题。
10·Many work hard to overcome difficult problems.
很多人努力攻克困难的问题。