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

• 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。
• 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。
• 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。
• 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。
• 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。
• Under his leadership, many knotty problems were smoothly solved.
  在他的领导下，许多伤脑筋的问题都迎刃而解。
• With the rapid growth of floating population, the population management has become a knotty problem.
  在当今的社会中流动人口的加剧，对人口的管理是一个很难的问题。
• Even the professor could not clarify the knotty point.
  甚至教授也无法解决这个棘手问题。
• The chemistry is knotty for me.
  化学对我来说是很复杂难懂的。
• 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。