leaf 的音标为 /liːf/(英式和美式发音一致)。
叶,叶子:指植物扁平、通常为绿色的部分,生长在茎或枝上。例如:The trees are coming into leaf.(树开始长叶子了。)
(书籍等的)一张,一页:指构成书籍的单张纸。
薄金属片,箔:尤指金或银的薄片,用于装饰。例如:The book was decorated with gold leaf.(这本书用金箔装饰。)
活动桌板:可折叠或添加到桌子上以扩大桌面的部分。
不及物动词:
生叶,长叶:指植物长出叶子。例如:The trees leafed late because of the long winter.(由于冬天漫长,树木很晚才长叶。)
翻书页:快速翻动书页浏览。
及物动词:翻…的页,匆匆翻阅。
leaf blade:叶片
in leaf:有叶子的;叶茂的
turn over a new leaf:开始新的一页,改弦更张,重新做人。例如:He realized he was in the wrong and promised to turn over a new leaf.(他认识到自己错了,承诺要重新开始。)
maple leaf:枫叶
lotus leaf:荷莲叶
tea leaf:茶叶
bay leaf:月桂叶(用于烹饪的芳香叶子)
The trees are just coming into leaf.(树木正好在长叶子。)
I was shaking like a leaf.(我像树叶似的直哆嗦。)
At rest the insect looks like a dead leaf.(这种昆虫不动时看上去像一片枯叶。)
The maple leaf stands for Canada.(枫叶代表加拿大。)
I was leafing through an old magazine when the doctor came in.(医生进来时,我正在匆匆翻阅一本旧杂志。)
The book was decorated with gold leaf.(这本书用金箔装饰。)
When the kids moved out Sam dropped the table leaves to make the dining table smaller.(孩子们搬出去后,萨姆合上活动桌面把餐桌变小了。)
If you're stung by a nettle, try rubbing a dock leaf on the sting.(如果被荨麻蜇了,试着用羊蹄叶擦一下蜇伤处。)
She decided to turn over a new leaf after her mother's death.(她母亲去世后,她决定开始新的生活。)
The evaporation from the leaf surface causes a constant compensatory suction of water.(叶片表面的蒸发作用产生持续的代偿吸水性。)
leaf 源自古印欧语 *leub(h)(意为“剥皮,剥落”),其演变路径为:剥皮 > 皮 > 树皮 > 树叶。这与汉字“皮”的演变类似,最初也表示“剥皮”的动作。
leaf 的复数形式为 leaves 。有网友巧妙地将其与“叶的最终宿命——离去(leave 的过去式和过去分词)”联系起来,便于记忆。