1. It was respectable to be a doctor, but not a surgeon who split people´s blood.
    作一个医生是受人敬重的，但作一个使人流血的外科医生却是另一回事。

2. I don't think I'm old-fashioned but hearing those tuneless , offensive lyrics repeatedly makes my blood boil .
    我想我还不至于老得落伍吧，可没完没了地听那毫无韵律、令人讨厌的歌曲实在让我生气。

3. I might have endangered other divers' lives if I had spilled blood in the pool. For what I knew — that few others knew — was that I was HIV-positive.
    要是我的血溅到了游泳池里，就会危及其他跳水选手的生命。因为我知道--而其他很少有人知道--我是阳性艾滋病毒携带者。

4. Instead, it's important to check levels of a different compound, which indicates the amount of storage of iron in the blood.
    其实，有必要检查血液中另一种混合成分的含量，它显示了血液中铁离子的储量。

5. For the sulfas are tiny crystals that do not dissolve in human blood, and might collect in the kidney and interfere with its functioning.
    这是因为磺胺药是一些不溶于人类血液的小晶体，可能在肾脏中集结，使肾功能衰减。

6. For these people, being tense may cause tremendous and rapid increases in their blood pressure.
    对这些人来说，压力会导致他们血压大幅度迅速上升。

7. Fatigue and poor performance may begin to appear in the second stage of deficiency, when not enough iron is present to form the molecules of blood protein that transport oxygen to the working muscles.
    到了缺铁的第二阶段，就会出现疲倦和力不从心，此时体内已没有足够的铁来形成血蛋白分子，将氧输至运动着的肌肉。