scan/scanner

scan /skæn/ vt. (scanned, scanning)1.细看，审视，观察：scan one’s face 端详某人的脸；scan the sky 观察天空［考句］The captain scanned the horizon for approaching ships.船长审视着远方，寻找驶来的船只。2. 扫描：scan the hard disk 扫描硬盘 The X-rays scan the patient’s chest for cancer. 给病人做胸透以查出是否有癌症 3.浏览：scan a newspaper 浏览报纸

scanner /ˈskænə/ n. [c] 扫描设备，扫描仪：Using a scanner, we can look at the unborn foetus.我们用扫描器可以观察未出生的胎儿。A scanner can scan documents and converts them into digital data. 扫描仪能够扫描文件并将其转换成数字数据。