n.

1. 叶子[C]
   The trees are thick with leaves.

   这些树生长着浓密的树叶。

2. （书籍等的）一张，一页[C]
   He tore a leaf out of his notebook.

   他从笔记本上扯下一页。

3. （折叠式桌子的）活动面板[C]
4. （门，窗等的）页扇[C]
5. （金属的）箔[U]

vt.

1. 匆匆翻阅
   He was leafing a magazine.

   他正在翻阅一本杂志。

vi.

1. 生叶片，长叶[（+out）]
   The trees on the hill are just leafing out.

   山上的树正在长出新叶。

   The trees are just beginning to leaf.

   树刚刚开始长叶子。

2. 匆匆翻阅[（+through）]
   I leafed through the catalog and found nothing interesting.

   我翻了翻目录，没看到什么有趣的东西。

n.

1. a flattened structure of a plant, typically green and blade-like, in which photosynthesis and transpiration mainly take place.
   ▸ (often in phr. in/into leaf) the state of having leaves.
2. a single thickness of paper, especially in a book.
3. gold, silver, or other metal in the form of very thin foil.
4. the part of a door, shutter, or table that is hinged or may be inserted.

v.

1. (of a plant) put out new leaves.
2. (leaf through) turn over (pages or papers), reading them quickly or casually.