A knotty problem is complicated and difficult to solve. 复杂的; 难以解决的
adjective [原级] 难以解决的，棘手的；（木头表面）多节（疤）的
The new management faces some knotty problems. 新的管理层面临着一些棘手的问题。
来自knot(n. 节疤)
- 网友用 “Knotty” 造句精选
- It was a knotty question. 这是一个棘手的问题。
- Einstein would furiously play his violin as a way to think through a knotty physics problem. 爱因斯坦会以疯狂地拉小提琴的方式来思考一个复杂的物理问题。