blaes /blez, bleɪz/

• 1. 

  N hardened clay or shale, esp when crushed and used to form the top layer of a sports pitch: bluish-grey or reddish in colour 灰青炭质页岩

• 2. 

  N (as modifier) 灰青炭质页岩的

  例：

  a blaes pitch