1. AIDS spreads in three basic ways: first, through sexual intercourse(性交); second, through contact with diseased blood; and third from an HIV mother to her baby.
    艾滋病的传播有三种基本方式：第一，通过性交；第二，通过接触艾滋病患者的血液；第三，经由携带艾滋病毒的母亲传给婴儿。

2. Athletes in high-impact sports such as running may also lose iron through a phenomenon where small blood vessels in the feet leak blood.
    运动员从事高度剧烈的运动，比如跑步时，也可能会因为足部细血管失血的现象而使铁质流失。

3. "In contrast, the animals that exercised inside the automatic wheel possessed a greater density of blood vessels in the brain than did either of the other two groups of animals."
    "相比之下，在自动轮中跑动的老鼠，较之其他两组的老鼠，其大脑的血管密度更大。"

4. Genetic material taken from blood samples could be used for commercial purposes without adequate payment made to the groups that provide the DNA.
    从当地人血样中提取的基因物质可被用于商业目的，却不给DNA提供者以足够的报酬。

5. Yes, we do think with our hearts, brains, muscles, blood and bones.
    是的，我们的确是在用心、用脑、用肌肉、用血液和骨骼来思考。

6. Vipers (adders) and rattlesnakes manufacture the blood poison, which is known as haemolytic.
    蝰蛇(小蝰蛇)和响尾蛇产生血毒液, 这种毒液叫溶血素.

7. Vipers (adders) and rattlesnakes manufacture the blood poison, which is known as haemolytic.
    蝰蛇(小蝰蛇)和响尾蛇产生血毒液, 这种毒液叫溶血素.

8. Vipers (adders) and rattlesnakes manufacture the blood poison,
    蝰蛇（蝮蛇）和响尾蛇产生血液毒素，

9. So that our precious blood may not be shed
    那么我们宝贵的鲜血，就不会白白流淌；

10. Placing a pillow between her legs, I notice that these too are ice cold, and not until I run my hand up over her knees do I feel any of the life-giving warmth of blood.
    当我把枕头放在她两腿之间时，发现它们也是冰凉的，直到把手移到她膝盖以上的部位，我才感受到血液供给生命的热度。