1. 头:knowledge 知识 | knowledge-box 头 | knowledge-intensive 知识密集型的
2. 资料柜:knowledge bench 三层的司钻凳 | knowledge box 资料柜 | knowledge concentrated industry 知识密集型产业
3. [口]头 [美俚]校舍:knock out of the box (棒球)打掉投手 | knowledge box [口]头 [美俚]校舍 | omnibus box (戏院)大包厢