During a mediastinoscopy, a patient has a lighted tube inserted under the sternum (chest bone) at the neck level and then moved down into the chest.是什么意思_During a mediastinoscopy, a patient has a lighted tube inserted under the sternum (chest bone) at the neck level and then moved down into the chest.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句