Christmas tree
noun uk/ˈkrɪs.məs ˌtriː/ us/ˈkrɪs.məs ˌtriː/
(TREE)
[ C ]圣诞树
a real or artificial fir tree that is decorated and kept in the home at Christmas
(FOOTBALL FORMATION)
[ S ]（足球比赛中的）圣诞树阵型（由4名后卫，3名防守型中场，2名进攻型中场和1名前锋组成的阵型）
in football, a formation or system in which a team has four defenders, three midfielders who play directly in front of the defence, and two attacking midfielders who play in a forward position behind one centre forward
Compare: 4 3 2 1