大三元

#麻雀 牌型一種，要用#紅中、#發財、#白板 各碰一次，另加任意上或碰牌一副、眼一對；又被稱為#三元及第 ((in mahjong) Great Dragons Hand - a formation of 3 triplets (pongs) on all 3 Dragon tiles (Red, Green and White), adding last meld of Chow or Pong of any suit, and a pair of eyes; literally: big top 3 exam candidates)

幾種#相機#鏡頭 合稱，三支#光圈 F2.8嘅#廣角鏡、標準鏡、遠攝鏡 (the collective term of 3 F2.8 camera lenses, wide-angle lens, standard lens and zoom lens)