单词	tail covert
释义	tail covert noun : one of the coverts of the tail quills Word History First Known Use 1815, in the meaning defined above
随便看	knee mortar knee of head knee plate knee rafter knee roll knee roof knee sock knee strap knee timber knee tool knee wall knee-crooking knee-deep knee-halter knee-high knee-high blackberry knee-high to a grasshopper knee-jerk knee-jointed knee-length knee-slapper knee-slappers knee-tied kneeboard kneebrush

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