urea [jʊ'ri:ə]

例句:

• Urea is commonly used as the source of nitrogen in foliage sprays.
  尿素作为氮素给源普遍地应用于叶面喷布.
  
• It must be broken down to urea, which consumes energy.
  它必须被分解成为尿素, 这时也要消耗能量.
  
• A kidney also takes urea and mineral salts out of the blood.
  肾还排出血液中的尿素和无机盐.
  
• The bag is lined with urea, which helps break down the feces and urine; then you just plant the entire bag.
  来自SA
• One molecule of urea, a major component of urine, contains four atoms of hydrogen bonded to two atoms of nitrogen.
  来自MSN
• Almost 85% of the urea found on human skin can be dispelled by showering with soap before getting in the pool.
  来自CNN