A new law to prevent the export of rare birds is to be introduced.一项禁止出口珍稀禽鸟的新法规即将实施。The bird-feeding system evenly disperses food and water.这一禽鸟喂养系统均衡地散布食物和水。The bones can be removed mechanically before the birds are packaged for sale.将禽鸟包装出售前可用机械将骨头剔除。