knotty
UK ['nɒt.i] US ['nɑ:.tˌi] adjective
COMPLICATED 复杂的 informal
■(of a problem or difficulty) complicated and difficult to solve 错综复杂的；难于解决的，棘手的•That's rather a knotty question.那实在是一个棘手的问题。
UK ['nɒt.i] US ['nɑ:.tˌi] adjective
WOOD 木头
■with a lot of knots 多节的•a knotty piece of wood多节的木头 |