| 单词 | knotty |
| 释义 | knottyBrE /ˈnɒti/ NAmE /ˈnɑːti/ adjective (knot·tier, knot·ti·est) complicated and difficult to solve 复杂的；难以解决的；棘手的SYN thorny◆ a knotty problem 棘手的问题having parts that are hard and twisted together 有节的；缠绕在一起的◆ the knotty roots of the old oak tree 盘根错节的老橡树根 |
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