be in the red

基本解释

If we don't sell any books soon, we'll be in the red.
如果我们再不赶快卖出一本书的话，我们的财务就要陷入赤字了。
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Clearly any light filtering through the atmosphere will increasingly be in the red light spectrum.
很明显任何透过大气层的光线将越来越多的是红色光谱。
blog.sina.com.cn
Those two countries, if they pursue their biofuel plans as they are on the table now, they will definitely be in the red zone in water terms, " she said."
“这两个国家，如果他们像现在计划中那样追求自己的生物燃料计划，他们无疑会在水的问题上进入一个红色危险区域，”她说。

And that car will be parked in front of the Red Lion Inn with a Christmas tree on top."
In that case the red light would be a beacon which means "forward," "go," "follow me," "damn the torpedoes." Right?
他就很可能代表,出发，跟我来等等意思，对吧？
耶鲁公开课 - 文学理论导论课程节选
Steve, and I guess in red he should be the Coca-Cola guy, and let's pick on our Jimmy stewart from last week, whose name is Patrick.
斯蒂文是可口可乐的经理,再请出上周的吉米·斯图尔特,叫帕特里克的那位同学来
耶鲁公开课 - 博弈论课程节选

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