Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
의사는 검영기를 사용하여 환자의 눈을 검사했습니다.uisaneun geomeonggireul sayonghayeo hwanjaeui nuneul geomsahaessseubnida.The doctor used a retinoscope to examine the patient's eyes.