New words：

scan [skæn]
v.扫描；审视；浏览；细看
n.浏览；扫描检查；快速查阅

Sample Sentences：

The doctors gave him an brain scan.
The radar scanned the sky for enemy planes.
I scanned the newspaper when I was waiting for the bus.
His mother scanned his face to see if he was telling the truth.

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