单词	pebble
释义	pebblepebble /ˈpɛbəl/ ●○○ noun [countable] Etymology ETYMOLOGYpebble Origin: Old English papolstan, from papol (perhaps from the sound of small stones hitting against each other) + stan stone a small smooth stone found on the beach or on the bottom of a river—pebbly adjective
随便看	single-sex single-space single-spaced single-spacing singleton singly singsong singular singularity singularly Sinhalese sinister sink sinker sinkhole sinking fund sinless sinner Sino- sin tax sinuous sinus sinusitis Sioux sip

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