因此，铁路公司最终将绿色的含义改成了“前行”，而用黄色表示“警告”。
Because of that, railway companies finally moved green meaning go and used yellow to mean warn.
绿色通常与积极的含义联系在一起，它与生活紧密相连。
Usually associated with positive meanings, green is most strongly connected with life.
挡风玻璃上端横挂着一条绿色的带子，从上面可以得知，无论信息的含义如何，它都是由史蒂夫和卡罗拉发送的。
A green strip across the top of the windscreen indicated that whatever the message was, it came from Steve and Carola.
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