n.

1. 花；花卉；开花植物[C]
   Bees gather nectar from flowers.

   蜜蜂采集花蜜。

2. 精华，精英[the S][J][（+of）]
   They are the flower of our nation.

   他们是我们民族的精英。

3. 开花；盛时[U]
   The narcissuses were in flower.

   水仙花盛开着。

vi.

1. 开花
   This bush flowers in the spring.

   这种灌木春天开花。

2. 【书】发育，成熟；繁荣
   Mozart's genius flowered at a very early age.

   莫扎特的才华在年幼时就焕发了出来。

vt.

1. 使开花
2. 用花装饰

n.

1. the seed-bearing part of a plant, consisting of reproductive organs (stamens and carpels) typically surrounded by brightly coloured petals (the corolla) and green sepals (the calyx).
2. (often in phr. in flower) the state or period in which a plant's flowers have developed and opened.
3. (the flower of) the finest individuals out of a number of people or things.

v.

1. [often as adj. flowering] (of a plant) produce flowers.
2. be in or reach an optimum stage of development.