[KongchangAI]
Unverified50% confidenceFactExact time

后道信道(Backchannels)概念由语言学家 Victor Yngve 于 1970 年代提出

1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen

Sources

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MCP
get_claim(id=490688)