【健康】血压-Blood Pressure(在线收听

A: Have you been having any problems lately?
B: No, but the nurse at school says that I should have my blood pressure 
checked.
A: Do you have a history of high blood pressure?
B: No, I have never been told that I have high blood pressure.
A: High blood pressure is called the silent killer because it hardly ever 
has symptoms. 
B:How do you check for high blood pressure?
A:We are going to use this cuff here, and it will give me a reading.
B:What do the numbers mean?
A: They tell me how much your heart is working at rest and when pumping 
blood.
B: Good. That will help me know how I am doing.
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