roof-tree
基本解释
- n.栋梁；屋脊大梁
英汉例句
- The timber carries the whole weight of the roof.
栋梁支撑屋顶全重。 - Turning my fluttering heart into a tree, let it stand firmly to welcome the baptism of time, being the paragon of mankind and the pillar of the nation.
化心旌为树，迎接时代的洗礼，坚毅地站着，为人类之灵长，为民族之栋梁。