柯林斯词典pebble /ˈpɛbəl/ (pebbles) 1. N-COUNT A pebble is a small, smooth, round stone which is found on beaches and at the bottom of rivers. 卵石 返回 pebble剑桥词典a small smooth round stone , especially one found on a beach or in a river （尤指沙滩或河流中的）卵石，砾石 This part of the coast has pebble beaches . 海岸的这一部分有几处砾石海滩。 返回 pebble