bilberries is bilberry's Plural Form

bilberry

US [ˈbɪlˌberi]
UK [ˈbɪlb(ə)ri]
  • n.【植】欧洲越橘
  • Web越桔;山桑子;覆盆子
Plural Form:bilberries  
n.
1.
【植】欧洲越橘