常见例句Results of anatomy showed that the urinary organ of African ostrich was different from those of other birds:composed of kidney,ureter and urodeum; 研究结果如下：非洲雏鸵鸟的泌尿系统由肾脏、输尿管和泄殖道组成,肾脏分前、中、后三部分； 返回 Urodeum