a flattened structure of a higher plant, typically green and blade-like, that is attached to a stem directly or via a stalk. Leaves are the main organs of photosynthesis and transpiration (高等植物的)叶 ■any of a number of similar plant structures, e.g. bracts, sepals, and petals 叶,叶状物(如苞片,萼片,花瓣) ■[mass noun]foliage regarded collectively [总称]叶 ■[mass noun]the state of having leaves 长叶,有叶 the trees are still in leaf. 树上还长着叶。 ■[mass noun]the leaves of tobacco or tea 烟叶,茶叶 [as modifier]leaf tea. 叶茶。
a thing that resembles a leaf in being flat and thin, typically something that is one of two or more similar items forming a set or stack 叶片,薄片 ■a single thickness of paper, especially in a book with each side forming a page 书页,纸页 ■[mass noun][with modifier]gold, silver, or other specified metal in the form of very thin foil 金属薄片,金箔 ■the hinged part or flap of a door, shutter, or table (窗,门等)扇 ■an extra section inserted to extend a table 活动桌板 ■the inner or outer part of a cavity wall or double-glazed window 空心墙(或双层窗)的内面(或外面)
verb [no obj.]
(of a plant, especially a deciduous one in spring) put out new leaves (植物,尤指落叶植物在春季)生叶,长叶
(leaf through)turn over (the pages of a book or the papers in a pile), reading them quickly or casually 翻阅(书页,纸张) he leafed through the stack of notes. 他翻阅那堆记录。
常用词组 shake (或 tremble) like a leaf
(of a person) tremble greatly, especially from fear (人)(尤指因恐惧)发抖
派生 leafage noun leafed adjective
[in combination]purple-leafed dahlias. 紫叶大丽花。
leafless adjective leaf-like adjective 语源
Old English lēaf, of Germanic origin; related to Dutch loof and German Laub