这种病主要发生在男性中，大约5%的患者无法区分红色和绿色。

The condition mostly affects men, around 5% of whom are unable to distinguish between red and green hues.

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有许多类型的彩色色盲，但最普遍的——不能区分红色和绿色——影响百分之6到8的人。

There are several types of color blindness, but the most common — an inability to distinguish red from green — affects 6 to 10 percent of men.

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For instance, suppose you want to know if the baby can tell green from red.

比如,假设你想知道,婴儿是否能够区分绿色和红色

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