自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
VERB 粗略地看;快读;浏览 When you scan written material, you look through it quickly in order to find important or interesting information.
She scanned the advertisement pages of the newspapers...
I haven't read much into it as yet. I've only just scanned through it.
VERB 细看;察看;审视;端详 When you scan a place or group of people, you look at it carefully, usually because you are looking for something or someone.
The officer scanned the room...
She was nervous and kept scanning the crowd for Paul...
VERB (用机器)扫描(行李等) If people scan something such as luggage, they examine it using a machine that can show or find things inside it that cannot be seen from the outside.
Their approach is to scan every checked-in bag with a bomb detector.
VERB 扫描(磁盘以查毒) If a computer disk is scanned, a program on the computer checks the disk to make sure that it does not contain a virus.
The disk has no viruses — I've scanned it already.
VERB 扫描(照片或文件) If a picture or document is scanned into a computer, a machine passes a beam of light over it to make a copy of it in the computer.
The entire paper contents of all libraries will eventually be scanned into computers...
Designs can also be scanned in from paper.
VERB (雷达、声呐等)扫描，扫掠 If a radar or sonar machine scans an area, it examines or searches it by sending radar or sonar beams over it.
The ship's radar scanned the sea ahead.
N-COUNT (医疗)扫描检查 A scan is a medical test in which a machine sends a beam of X-rays over a part of your body in order to check that it is healthy.
He was rushed to hospital for a brain scan.
...a breast scan to check for cancer.
N-COUNT 胎儿扫描检查 If a pregnant woman has a scan, a machine using sound waves produces an image of her womb on a screen so that a doctor can see if her baby is developing normally.
VERB (诗)符合格律，韵节合拍 If a line of a poem does not scan, it is not the right length or does not have emphasis in the right places to match the rest of the poem.
He had written a few poems. Sid told him they didn't scan.