Textured materials appropriate for birdbaths, streams , and pools include sand, stones , pebbles, and concrete.沙子 、 石块、鹅卵石 、 混凝土这一类有纹理的东西很适合于这类工作.I threw pebbles at the hens, and that made them jump and squawk.我朝母鸡扔卵石，吓得...
The ground was strewn with sharp-edged pebbles.地上铺满了棱角锋利的石子。I threw pebbles at the hens, and that made them jump and squawk.我朝母鸡扔卵石，吓得它们乱跳乱叫。The pebbles of the drive crunched under his feet.汽车道上的小石子在他脚底下喀嚓作响....