With the percentage of people over age 65 expected to nearly double by 2050, it's important to weigh the health benefits of screening against the risks and costs of routine testing.
出自-2012年12月阅读原文
In many cases, screening can lead to surgeries to remove cancer, while the cancers themselves may be slow-growing and may not pose serious health problems in patients' remaining years
出自-2012年12月阅读原文
But the message that everyone must screen for cancer has become so deep-rooted that when health care experts recommended that women under 50 and over 74 stop screening for breast cancer, it caused a riotous reaction among doctors, patients and advocacy groups.
出自-2012年12月阅读原文
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N-COUNT
(电视、电脑的)屏幕;(电影的)银幕
A screen is a flat vertical surface on which pictures or words are shown. Television sets and computers have screens, and films are shown on a screen in cinemas.
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N-SING
(总称)电影，电视
You can refer to film or television as the screen .
例句
Many viewers have strong opinions about violence on the screen...
许多观众对银幕暴力心存反感。
She was the ideal American teenager, both on and off screen.
无论是在荧幕上还是在生活中，她都是人们心目中完美的美国青少年。
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VERB
放映(电影);播放(电视节目)
When a film or a television programme is screened, it is shown in the cinema or broadcast on television.
例句
The series is likely to be screened in January...
这个系列剧可能在 1 月份播放。
TV firms were later banned from screening any pictures of the demo.
后来各电视台被禁止播放任何有关这次游行的画面。
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N-COUNT
屏风;隔板
A screen is a vertical panel which can be moved around. It is used to keep cold air away from part of a room, or to create a smaller area within a room.
例句
They put a screen in front of me so I couldn't see what was going on.
他们在我面前竖了一面屏风，所以我看不到发生了什么事情。
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VERB
遮挡;遮蔽
If something is screened by another thing, it is behind it and hidden by it.
例句
Most of the road behind the hotel was screened by a block of flats.
宾馆后面的那条路大部分被一片公寓楼遮住了。
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VERB
检查，筛查(以确定是否患病)
To screen for a disease means to examine people to make sure that they do not have it.
例句
...a quick saliva test that would screen for people at risk of tooth decay.
能快速核查是否长蛀牙的唾液检验
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VERB
筛选，甄别(看是否可靠)
When an organization screens people who apply to join it, it investigates them to make sure that they are not likely to cause problems.
例句
They will screen all their candidates.
他们会对所有求职者进行筛选。
...screening procedures for the regiment.
参军的筛选程序
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VERB
对(人、行李)进行安全检查
To screen people or luggage means to check them using special equipment to make sure they are not carrying a weapon or a bomb.
例句
The airline had been screening baggage on X-ray machines.
该航空公司已采用X光机对行李进行安全检查。
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VERB
转接，甄别(来电以决定是否接听)
If you screen your telephone calls, calls made to you are connected to an answering machine or are answered by someone else, so that you can choose whether or not to speak to the people phoning you.
例句
I employ a secretary to screen my calls.
我雇用了一名秘书转接打给我的电话。