rooftree
/ˈruːfˌtriː/a beam laid along the ridge of a roof; provides attachment for upper end of rafters
noun [专属名词] 屋顶；栋梁
The last rooftree of the city, while the newly awakened sparrows chatter like mad things in the trees of the park. 这座城市最后一棵高大的树梢已然枯萎，而刚刚苏醒的麻雀们在公园的树上叽叽喳喳地叫个不停。
