等于快门就一下，但曝光时间长，6秒，so，firefly will light up its abdomen at a rate

来源: 于 2021-06-06 16:28:46 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

 “A male firefly will light up its abdomen at a particular rate or wavelength” 

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