Roof-tree
n. 栋梁, 屋脊大梁
📖 牛津释义
roof-tree
n strong horizontal main beam at the highest point of a roof 脊檩; 大梁; 正梁.
🧩 词语组成解析
roof
[ruf]
n. 屋顶，房屋;最高部，顶部;最高限度;口腔顶部;
vt. 给…盖顶;覆盖;保护，庇护;
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
🗣️ 情景例句
We'll finish the conversation when they go to the museum.
他们去博物馆之后我们再聊。
I'm a graduate of Yale University., I have a Bachelor of Arts degree.
我是耶鲁大学的毕业生，我有文学学士学位。
Are you planning to pay in cash?
你要付现吗？