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。
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