形容词棘手的; （指木材）多结节的; 多节瘤的; 困难的

1. 多节的：knotting 结形花边 | knotty 多节的 | knotweed 紫菀科植物

2. 有结的：有洁癖的人wowser | 有结的knotty | 有结构的structured

3. 斑点的：斑点板岩 knotted slate | 斑点的 knotty | 叶绿矾 knoxvillite

4. 难解 瘤状：knottsclay 板结土 | knotty 难解 瘤状 | knottyingmachine 打结机

1. 复杂的；难以解决的；棘手的
A knotty problem is complicated and difficult to solve.

e.g. The new management team faces some knotty problems.
新的管理团队面临一些棘手的问题。

2. 有节的；多节的
Knotty wood has a lot of small hard areas on it where branches once grew.

e.g. ...the knotty trunk of a hawthorn tree.
多节的山楂树干