緊急出口「Exit」為什麼是綠色的？
（Photo by Andrew Teoh on Unsplash）
紅色通常代表「緊急狀況」，那為什麼緊急出口標誌是綠色
的呢？
(A) 在紅綠燈上，綠色代表前行。
Green means "go" at traffic lights.
(B) 綠色是許多人最喜歡的顏色。
Green is many people's favorite color.
(C) 綠色在黑暗之中可見度較高。
Green is easy to see in the dark.
綠色代表「安全」，在暗處你也能夠輕易地從遠方看見它。
Green means "safety." It's also easy to see from far away in the dark.
在1979 年，一位日本的設計師設計了這個常見的「奔跑者」綠色標誌。
A Japanese designer made the common green "running person" exit sign in 1979.
在這之前，許多人死於百貨公司火災，因罹難者無法找到出口而導致了這些災難發生。
Before this, many people died in department store fires. This happened because they couldn't find the exits.
許多國家現在使用綠色的「奔跑者」出口標誌，然而，美國的緊急出口號誌仍然是紅色的，並且僅寫著「EXIT」。
Many countries now use green "running person" exit signs. However, American exit signs are usually red and just have the word "EXIT."
你可能可以在飛機上看到這些紅色的緊急出口號誌。
You might see these red exit signs on airplanes.
答案：(C)