Objective To evaluate the role of preoperative ultrasonography in detecting early cervical lymph node metastasis in differentiated thyroid carcinoma.是什么意思_Objective To evaluate the role of preoperative ultrasonography in detecting early cervical lymph node metastasis in differentiated thyroid carcinoma.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句