To click one's tongue and knit one's brows, describing an expression of tasting something sour, or showing surprise or puzzlement.
听到这个出人意料的消息，大家都不由得咂舌攒眉，感到十分惊讶。
Upon hearing the unexpected news, everyone couldn't help but click their tongues and knit their brows, feeling extremely surprised.
Era:
Early Modern
Frequency:
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