单词	parr
释义	parr /pɑː / noun (plural same) A young salmon (or trout) between the stages of fry and smolt, distinguished by dark rounded patches evenly spaced along its sides.There is significant shift in the MHC composition of trout red muscle between parr and smolts.... Salmon parr in the wild will naturally come across patches of substrate of similar color to the marble chips used in this experiment. Quantitative analysis of duty cycle shows a significant increase in duty cycle at each position between parr and smolts. Origin Early 18th century: of unknown origin.
随便看	grapnel grappa Grappelli, Stephane grapple grappler grappling hook grappling iron graptolite grapy GRAS Grasmere visual acuity visual agnosia visual aid visual angle visual art visual arts visual binary visual cortex visual display unit visual field visualisation visualise visuality visualizable

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