血

• Reptiles are cold-blooded .
  爬行动物是冷血的。
• When he touched it his hand came away sticky with blood .
  他用手一模，粘糊糊的弄了一手血。
• The lessons learned at the cost of blood helped to sober us .
  血的教训使我们的头脑清醒了。
• I 'll have my blood tested .
  我要检查一下血。
• Blood spurted from the wound .
  血从伤口喷出。
• Blood must atone for blood .
  血债要用血来还。