译文:客厅里为什么会有一小株常青树?

原文:Why is there a small evergreen tree in the living room?

这是一项德国的传统,最早开始于公元前700年,

19世纪作为圣诞树在德国流行,然后通过宾西法尼亚的德国移民将这一传统带到英国,有传到美国.

This is a German tradition, started as early as 700 A.D. In the 1800s the tradition of a Christmas tree was widespread in Germany, then moved to England and then to America through Pennsylvanian German immigrants.