to look at something carefully, with the eyes or with a machine, in order to get information

She anxiously scanned the faces of the men leaving the train. 她急切地盯着一张张走下火车的人的脸。

Doug scanned the horizon for any sign of the boat. 道格注视着地平线，搜寻着那只船。

Synonyms: check (EXAMINE)check something out (EXAMINE) examine (LOOK AT CAREFULLY)inspectperuse study (EXAMINE)survey (LOOK AT)

to look through a text quickly in order to find a piece of information that you want or to get a general idea of what the text contains

I scanned through the booklet but couldn't find the address. 我很快地翻阅了一遍小册子，但没有找到那个地址。

Scan the newspaper article quickly and make a note of the main points. 把报上的那篇文章快速浏览一遍，记下要点。

to use a machine to put a picture of a document into a computer, or to take a picture of the inside of something

I'll just scan the article into the computer. 我只能把这个文件扫描到计算机中。

Volunteers' brains were scanned while they looked at the pictures. 当自愿者观察这个图片时，他们的大脑被扫描。

All hand luggage has to be scanned. 所有手提行礼都必须经过扫描。

If a poem or part of a poem scans, it follows a pattern of regular beats.

This line doesn't scan - it has too many syllables. 这行诗不合节拍——音节太多了。

a careful or quick look through something

I gave the book a quick scan, and decided not to buy it. 我粗粗地浏览了一下那本书，决定不买了。

a medical examination in which an image of the inside of the body is made using a special machine

to do a brain scan 接受脑部扫描

to have an ultrasound scan 接受超声波扫描