The cause: Oxygen-rich blood is bright red, while blood with less oxygen turns dark and bluish-colored.
原因：富氧血是明红色，然而，含较少氧气的血变成黑色和蓝色调。
I found two bottles of colored nail varnish. One contained only a few drops of a bright red liquid, which was in fact red ink.
我找到两个装有色指甲油的瓶子，其中一个里面只有几滴鲜红色液体，实际上那是红墨水。
Originally pure white flower, but the one that has become bright-colored is red. Color of the blood.
原本洁白的花朵，却变成了鲜艳的红色。血的颜色。
Tricolour amaranth seedling very resemble three-colored amaranth, but arrived deep autumn, its Jibuxie turns for modena, and top leaf becomes if blood-red is caught, bright-coloured and unusual.
雁来红幼苗很像苋菜，但到了深秋，其基部叶转为深紫色，而顶叶则变得猩红如染，鲜艳异常。
Tricolour amaranth seedling very resemble three-colored amaranth, but arrived deep autumn, its Jibuxie turns for modena, and top leaf becomes if blood-red is caught, bright-coloured and unusual.
雁来红幼苗很像苋菜，但到了深秋，其基部叶转为深紫色，而顶叶则变得猩红如染，鲜艳异常。
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