pebble

n.鹅卵石

peaked, peaky (-ier, -iest) (also peaked), peal, pean, peanut, peanut butter, peanut oil, pear, pearl, pearl barley, pearl button, pearl-gray, pearl-oyster, pearly, pearmain, peasant, peasantry, pease-pudding, peat, peaty, pebble-dash, pebbly, pecan, peccadillo, peccary, peck, pecker, peckish, pectic, pectin, pectoral, pectorals, peculate, peculation, peculiar, peculiarity, peculiarly, pecuniary, ped-, pedo-, pedagogically,