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

• The chemistry is knotty for me.
  化学对我来说是很复杂难懂的。
• 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。
• It is almost impossible to skirt the knotty problem.
  想回避这个棘手的问题几乎是不可能的。
• This is a knotty problem.
  这可是件让人挠头的事。
• 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。
• 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。
• The problem of the bad assets is a knotty problem commonly encountered by the banking business of each country.
  不良资产是各国银行业普遍都曾遭遇过的一个棘手问题。
• Connected to this is the knotty matter of division.
  与此相关联的是棘手的除法问题。
• 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。