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	sand trap sandwich sandwich board sandy sane sanely San Francisco San Francisco Bay sang Sanger, Margaret sang-froid Sangre de Cristo Mountains, the sangria sanguinary sanguine sanguinely sanitary sanitary landfill sanitary napkin sanitation sanitation worker sanitize sanity San José San Juan

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