fireflies is firefly's Plural Form

firefly

US [ˈfaɪrˌflaɪ]
UK [ˈfaɪə(r)ˌflaɪ]
  • n.萤火虫
  • Web美梦成真;萤火虫之爱;月光萤火
Plural Form:fireflies  
n.
1.
萤火虫