hummingbirds

例句:

• Hummingbirds have discovered that nectar and pollen are very nutritious.
  蜂鸟发现花蜜和花粉是很有营养的.
  
• Hummingbirds hover in front of flowers while they collect nectar.
  来自BBC
• Why do hummingbirds and gorillas both have backbones?
  为什么蜂鸟和大猩猩都有脊骨?
  
• But thoughts eluded her, darting in and out of her mind like frightened hummingbirds.
  但思想老是避开她, 象只受惊的蜂雀似的在她心上穿进穿出,始终不肯停住一刻儿.
  
• The resemblance to hummingbirds is an example of convergent evolution.
  来自BBC
• Individuals from some species of hummingbirds weigh less than a penny.
  来自BBC