这是一个棘手的问题。
这是一段复杂难懂的文字。
She met with a lot of knotty problems.
她碰上了许多棘手的问题。
Procure a solution to a knotty problem.
解决了一个棘手的问题。
Procure a solution of a knotty problem.
找到了一个解决棘手问题的办法。
It is almost impossible to skirt the knotty problem.
那几乎是不可能的事，不过他却办到了。
He made his mind to solve the knotty problem by himself.
他下决心自己解决这个棘手的问题。
Writing is always a knotty problem in English teaching.
写作向来是英语教学中的一个难点。
Thank you for the article to help me solve a knotty problem!
谢谢你的文章帮助我解决了一个棘手的问题！
The knotty problem which affects production has been solved.
解决了影响快速达产的难题。
Whether the Channel tunnel should be built or not is a knotty point.
该不该修英吉利海峡隧道，是一个难以决定的复杂问题。
The control of azimuth is a knotty problem in controlling directional well trace.
在定向井轨迹控制中，方位控制是个棘手问题。
I never could more than get one knotty thing learned before another presented itself.
在记住一件事情之前我决不可能记住另一件复杂的事情。
Ten years ago when computer came into China, Chinese character coding became a knotty problem.
在十年以前当计算机进入中国的时候，中国个性编码变成一个有结的问题。
Ten years ago when computer came into China, Chinese character coding became a knotty problem.
在十年以前当计算机进入中国的时候，中国个性编码变成一个有结的问题。
应用推荐