Uruguay has a microchipping system for cattle, which costs $20 a head.
乌拉圭关于养牛有着通过微型芯片跟踪的系统，其花费为每头牛20美元。
Uruguay, for example, has a system of microchipping calves that costs about $20 a head.
比如说，乌拉圭关于养牛有着通过微型芯片跟踪的系统，其花费为每头牛20美元。
Uruguay, for example, has a system of microchipping calves that costs about $20 a head.
比如说，乌拉圭关于养牛有着通过微型芯片跟踪的系统，其花费为每头牛20美元。
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