您要查找的是不是：
- The central rib or vein of a leaf. 叶的中脉或中肋。
- The surface between the ribs of a ribbed vault. 梁腹，腹板某扇形拱的胁拱之间的平面
- The central or principal vein of a leaf. 中脉中心的或主要的叶脉
- The type set for printing one side of a leaf. 一页版面为在一面印刷的版面设置
- A diagonal rib of a Gothicvault. 哥特式穹顶的对角拱柱。
- The expanded area of a leaf or petal; a blade. 叶片叶子或瓣的延展部分; 叶子
- The ribs of a leaf,an umbrella,a fan,a boat 叶主脉、伞骨、扇骨、船的肋材.
- A diagonal rib of a Gothic vault. 哥特式穹顶的对角拱柱
- The fall of a leaf heralds the advent of autumn. 一片落叶预兆秋天的来临。
- The expanded area of a leaf or petal;a blade. 叶片叶子或瓣的延展部分；叶子
- A stem with the form and function of a leaf. 具有叶的形状和功能的枝。
- Lotus flower, hide in the shadow of a leaf. 会躲太阳的一朵荷花。
- A notch, as in the edge of a leaf. 切口，如叶片边缘
- The butcher chopped off a rib of frozen pork. 屠夫砍下一块冻肉的肋条。
- A leaf of a book numbered only on the front side. 一张书中的一页，只在正面记有页码
- The writing or printing on one side of a leaf. 一页的印刷或文字:在一页的一面上的字迹或印刷。
- I feel the delicate symmetry of a leaf. 我感触到一片树叶的完美的对称性。
- The cleft, depression, or recess. Between two lobes of a leaf. 叶两裂片之间的缺裂、凹陷。
- A half-circle window,often with sash bars arranged like the ribs of a fan. 扇形窗门或窗上有扇骨状放射格条的半圆形窗。
- Students found the impression of a leaf in a fossil. 学生发现化石中一片叶子留下的痕迹。
