supergrasses是supergrass的复数
supergrass
美 ['supər.ɡræs] 
英 ['suːpə(r).ɡrɑːs] 
- n.(为求得宽大处理)向警方告密的罪犯
 - 网络超级幼苗;超级草;超级幼苗合唱团
 
复数:supergrasses  
n.
informer,grass,informant,squealer,rat
n.  | 1. somebody who gives information to the police or security forces implicating a large number of criminals or terrorists 2. a criminal who gives information about a lot of other criminals to the police  |