An audiologist from the US donated sound testing equipment and trained DPF staff to use the equipment.
一名美国听觉矫治专家捐献听力测试设备并培津市残联人员如使用该设备;
An audiologist from the US donated sound testing equipment and trained DPF staff to use the equipment.
一名美国听觉矫治专家捐献听力测试设备并培津市残联人员如使用该设备;
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