John bought me a red shirt as a birthday present.

作为生日礼物约翰送我的是一件红衬衫。

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Although the technique accurately captures skin tones of all kinds, a red shirt might appear a little pinker than usual, or a freckle might disappear.

虽然暗闪光技术能够准确捕捉到各种肤色，但是在暗闪光下，红t恤看起来好像比平常粉了一点，有时候雀斑什么的会拍不出来。

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A dark red stain was spreading across his shirt.

一个暗红色的污渍正在他的衬衫上渗开。

《柯林斯英汉双解大词典》

Two years ago, he said police stood by as Red Shirts attacked a Yellow-Shirt rally he had organized.

VOA: standard.2010.05.25

So the woman, I have immediately forgotten the name of, in the red shirt, whose name was Courtney, so Courtney also gave a reason for choosing Alpha, and it was a perfectly good reason for choosing Alpha, nothing wrong with it, but notice that this reason's a stronger reason.

我忘记刚才那位女士的名字了,穿红色衬衫的那位,她叫考特尼,对,考特尼也说了她为什么选α,她也有不错的理由来选α,这本身没错,但是呢,这个理由显得更充分

耶鲁公开课 - 博弈论课程节选

Saturday's protest took a more confrontational stance as Red Shirt protesters demanded troops stationed close to the rally site in central Bangkok to stand down.

VOA: standard.2010.03.27

"It's been an incredible day, " said McIlory, who followed Woods' tradition of wearing a red shirt on the final day of a competition.

CNN: PGA champion McIlroy revels in defying doubters

In the 2010 failed bombing in Times Square, investigators urged the public to help identify a person wearing a red shirt who was seen in a video leaving the scene.

WSJ: Manhunt for Bombers Focuses on Two Men

Nantucket red, for example, has the look of a red shirt that has been washed countless times and is faded to a light peachy pink from years of sun exposure, he says.

WSJ: How to Dress for a Preppy Beach Weekend