especially in the past, warmed beer or wine with spices added that is drunk at Christmas time, usually from a large bowl

By the Middle Ages, the practice of sharing a giant bowl of wassail evolved from a holiday celebration to a form of drunken begging. 到了中世纪，共享一大碗圣诞节温酒的习俗从节日庆祝演变成了一种醉酒乞讨的形式。

in the past, an event around Christmas time that involved pouring wassail on the trees in an orchard (= an area of land where fruit trees are grown) in order to encourage the trees to produce a good crop the next year

The Leominster Morris men performed the age-old wassail ceremony in apple orchards at Aymestrey, Herefordshire. 利奥明斯特的莫里斯人在赫里福德郡艾梅斯雷的苹果园里举行了古老的向果树敬酒的仪式。

in a ceremony around Christmas in the past, to pour wassail on the trees in an orchard (= an area of land where fruit trees are grown) in order to encourage the trees to produce a good crop the next year

Here's to the old pagan tradition of wassailing the apple trees. 为古老的异教传统，向苹果树敬酒干杯。

especially in the past, to go from house to house at Christmas time singing carols (= Christmas songs), traditionally drinking wassail

By the 19th century bands of rowdy youths were a problem as they wassailed from house to house, demanding handouts from the gentry. 到了19世纪，成群结队吵吵闹闹的年轻人成了一个问题，他们挨家挨户地唱圣诞颂歌，要求乡绅们施舍。