Without enough blood, you can't cool off.
如果血容量不足，人体便无法冷下来。
Move around inside enough to get the blood flowing without breaking a sweat.
在室内充分活动，在不流汗的情况下让血液流动起来。
Without enough of these, the animal becomes anemic, and–if the bone marrow isn’t given enough time to regenerate new red blood cells–it may even die.
红细胞的缺失诱发动物贫血；如果骨髓没有及时更新红细胞，动物就会丧命。
It is honorable to donate blood without pay, but the usage of the blood donated is not transparent enough.
无偿献血是件光荣的事，但是医院在血液用途上却不够透明化。
Without enough magnesium in our bodies, muscles cannot fully relax and contracted muscles may lead to other symptoms of magnesium deficiency such as headaches and high blood pressure.
身体里没有足够的镁，肌肉不能完全放松，而收缩的肌肉会导致其他缺镁症状，如头痛和高血压。
Without the right number of red blood cells and hemoglobin, the body's tissues don't get enough oxygen to function properly.
根据NIDDK的说法，没有正常水平的红细胞和血红蛋白，身体组织就不能够得到充足的氧气，因而不能正常的发挥功能。
Without the right number of red blood cells and hemoglobin, the body's tissues don't get enough oxygen to function properly.
根据NIDDK的说法，没有正常水平的红细胞和血红蛋白，身体组织就不能够得到充足的氧气，因而不能正常的发挥功能。
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