unclasped
v.
解开扣子，打开( unclasp的过去式和过去分词 );
例句:
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She unclasped the necklet quickly ; quickly , without looking, laid it inside.
她迅速解下围巾,看也不看, 很快地把它放进了盒子.
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She clasped and unclasped her hands.
她不断地紧握和松开手.
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Lu had unclasped it for me and handed it to me reclasped.
来自NEWYORKER