N-COUNT When a movie studio gives an actor a screen test, they film a short scene in order to test how good he or she would be in movies. (挑选电影演员的)试镜
As part of one classic test, you watch letters flashed on a computer screen.
作为一个经典测试的一部分，你会看到字母在电脑屏幕上闪现。
The test could be used to screen healthy people to see if they are carrying the virus.
这项测试可以用来检查健康人群，看他们是否携带该病毒。
Kids can test drive the latest games on large-screen TVs with state-of-the-art sound.
孩子们可以在有高级音响效果的大屏幕电视上试玩新游戏。
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