欧文斯和奥尔森假设，如果类胡萝卜素是稀有的或对健康有要求的，则通过着色指示的类胡萝卜素的存在在配偶选择的背景下将是有意义的。

Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health.

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警方说他们的怀疑产生于欧文斯先生身上留有其他印迹。

The police said their suspicions were aroused because Mr. Owens had other marks on his body.

《柯林斯英汉双解大词典》

欧文斯答道，“谁比谁更有价值？”

Owens answers, "Worth more to whom?"

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