knotty

英 [ˈnɒti]

美 [ˈnɑːti]

adj.  复杂的; 难以解决的; 棘手的; 有节的; 缠绕在一起的

最高级：knottiest　比较级：knottier　

GRE

BNC.21895 / COCA.23275

牛津词典

adj.

• 复杂的；难以解决的；棘手的
  complicated and difficult to solve
  1. a knotty problem
     棘手的问题
• 有节的；缠绕在一起的
  having parts that are hard and twisted together
  1. the knotty roots of the old oak tree
     盘根错节的老橡树根

柯林斯词典

• ADJ-GRADED 复杂的；难以解决的；棘手的
  Aknottyproblem is complicated and difficult to solve.
  1. The new management team faces some knotty problems.
     新的管理团队面临一些棘手的问题。
• ADJ 有节的；多节的
  Knottywood has a lot of small hard areas on it where branches once grew.
  1. ...the knotty trunk of a hawthorn tree.
     多节的山楂树干

双语例句

• How to construct an excellent artificial neural network based on actual problems is a knotty problem for us.
  如何根据问题建立一个好的神经网络是摆在我们面前最棘手的问题。
• 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。
• Through the analysis of knotty problems of equivalent balance in senior chemical teaching, the author sums them up from different conditions and gets regular knowledge so as to apply.
  通过对高中化学教学中等效平衡疑难问题的分析，从不同条件下进行归纳和总结，得出规律性的认识，以便应用。
• I now face the knotty question of what to have for breakfast.
  我现在伤脑筋的是不知道早餐吃什么好。
• He and the Don had solved many a knotty problem in this room, and so when he saw the Godfather leave the festivities and enter the house, he knew, wedding or no, there would be a little work this day.
  他和堂在这间屋子里解决了许多棘手的问题，因此，当他看到教父离开庆典进入那所房子时，他知道，婚礼与否，这天会有一点事情。
• The new management team faces some knotty problems.
  新的管理团队面临一些棘手的问题。
• Engineers would also have to solve some knotty packaging problems.
  还有，工程师也必须能解决某些错综复杂的套装问题。
• I judged that he was concocting a particularly knotty editorial.
  我估计他是在拼凑一篇特别伤脑筋的社论。
• 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。
• This paper carries out analysis of some knotty problems in the teaching of "the structure of matter" to make numerous teachers and students understand and grasp the key and difficult points of this course.
  通过对《物质结构》教学中若干疑难问题的分析，使广大师生能更好理解、掌握这门课程的重点和难点。