The term "dog whistle" originally referred to a whistle used in dog training, emitting a sound only audible to dogs. Over time, it evolved to describe messages with hidden meanings. Just as only dogs can hear certain frequencies, only certain people can understand the hidden message. It is often used in discussions about politics, media, advertising, and social issues, where messages may contain subtle cues or references intended to appeal to a particular audience without explicitly stating the message.

“dog whistle”的英语定义和含义

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