So it makes sense that the elderly should be routinely screened for new tumors — or doesn't it?
出自-2012年12月阅读原文
And clearly, people over age 75 who have other risk factors for cancer, such as a family history or prior personal experience with the disease, should continue to get screened regularly
出自-2012年12月阅读原文
柯林斯高阶英汉双解学习词典释义
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.
N-SING
(总称)电影,电视
You can refer to film or television as the screen .
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.
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.