be in the red

基本解释

If we don't sell any books soon, we'll be in the red.
如果我們再不趕快賣出一本書的話，我們的財務就要陷入赤字了。
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Clearly any light filtering through the atmosphere will increasingly be in the red light spectrum.
很明顯任何透過大氣層的光線將越來越多的是紅色光譜。
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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."
“這兩個國家，如果他們像現在計劃中那樣追求自己的生物燃料計劃，他們無疑會在水的問題上進入一個紅色危險區域，”她說。

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,出發，跟我來等等意思，對吧？
耶魯公開課 - 文學理論導論課程節選
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.
斯蒂文是可口可樂的經理,再請出上周的吉米·斯圖爾特,叫帕特裡尅的那位同學來
耶魯公開課 - 博弈論課程節選

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