Red coloration is associated with aggression in many animals.
对很多动物来说，红色象征着进攻。
Cut in a convex form known as a cabochon , this red tourmaline could also be called a rubellite because of its red coloration.
切割成一个弯如球形的样子就像是天然宝石的形状，这红色电气石也可以叫红电气石因为它有红的染色。
The dorsal fin coloration of the male is a circular red spot ringed with blue which scientists said reminded them of Obama's campaign logo.
这条雄性的鱼，背鳍是蓝色，上面带着红色圆形点，科学家们表示会联想到奥巴马的竞选标志。
Garnet varies in coloration from colorless to black though it is often thought of as only red.
石榴石不同的色彩，从无色到黑色虽然这是通常被认为是唯一的红色。
A deficiency of potassium leads to a characteristic red or purple coloration of the leaves, poor root growth, and flower and fruit formation.
缺乏钾会导致叶子呈现红色或紫色，减少了根的生长以及花和果实的形成。
A deficiency of potassium leads to a characteristic red or purple coloration of the leaves, poor root growth, and flower and fruit formation.
缺乏钾会导致叶子呈现红色或紫色，减少了根的生长以及花和果实的形成。
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