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。
He had to discuss knotty points of Rousseau and Hegel with her.
他不得不和她讨论卢梭和黑格尔的那些深奥问题。
He tackled the knotty problem without recourse to any help.
他不依靠任何人的帮助而独立处理这一难题。
The chemistry is knotty for me.
化学对我来说是很复杂难懂的。
He nodded his head repeatedly as if he had managed to solve some knotty problem.
他不住地点着头，似乎幸而弄明白了一个疑难的问题。
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。
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。
This paper raises knotty problems concerning the translation of the History of Ming Into the vernacular Chinese.
本文就个人翻译《明史》时遇到的一些较为棘手的问题提出来进行讨论。
He was scowling fearfully, and I judged that he was concocting a particularly knotty editorial.
他皱眉瞪眼，样子很可怕，我估计他是在拼凑一篇特别伤脑筋的社论。
While in calculation of unsteady state problems, the transient terms are always knotty problems to deal with.
但是在求解非稳态流体流动问题时，对非稳态项的处理一直是个棘手问题。