clack
noun [ C usually singular ] uk/klæk/ us/klæk/
（硬物相互撞击发出的）咔哒声，噼啪声，吧嗒声
a short sharp noise made by two hard objects being hit together
He could hear the clack of high heels walking past in the corridor. 他可以听见高跟鞋经过走廊时发出的咔哒声。
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