BB [--]

Jyutping bi1 bi1 daan2
Pinyin bb dàn

Definitions (粵典–words.hk)
  1. 名詞
    一種​經氣​槍發​射​嘅​圓​粒​槍​彈​,​玩具​槍同​軍用​槍​都​會​用到​(​量​詞​:​粒​)
    airsoft pellets