【上位】 the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets; "blood carries oxygen and nutrients to the tissues and carries away waste products"; "the ancients believed that blood was the seat of the emotions" 心臓によって体全体に供給され、血漿、血球および血小板を含んだ流体（脊椎動物では赤い）。
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