【英语时差8,16】测谎器（上）

In an ideal world, a lie detector¹ machine would measure some involuntary response which everyone has when they lie, but not when they tell the truth. Unfortunately, there is no such response and, because of this, no such thing as a perfect lie detector. The so-called lie detector tests you’ve heard of are usually polygraph tests. How does this test work, and how accurate is it? A polygraph generally measures four things. Electrodes on your palm measure how much you sweat. A rubber tube strapped² around your chest detects changes in breathing. A blood pressure cuff³ measures both pulse and blood pressure. During the course of the test, the examiner usually asks about a dozen questions. Most of these are neutral–like “What is your name?”–but mixed in are the important questions–”Did you kill your wife?” for example.

1 detector   

n.发觉者，探测器

参考例句：

• The detector is housed in a streamlined cylindrical container.探测器安装在流线型圆柱形容器内。
• Please walk through the metal detector.请走过金属检测器。

2 strapped   

adj.用皮带捆住的，用皮带装饰的；身无分文的；缺钱；手头紧v.用皮带捆扎(strap的过去式和过去分词)；用皮带抽打；包扎；给…打绷带

参考例句：

• Make sure that the child is strapped tightly into the buggy. 一定要把孩子牢牢地拴在婴儿车上。 来自《简明英汉词典》
• The soldiers' great coats were strapped on their packs. 战士们的厚大衣扎捆在背包上。 来自《简明英汉词典》

3 cuff   

n.袖口；手铐；护腕；vt.用手铐铐；上袖口

参考例句：

• She hoped they wouldn't cuff her hands behind her back.她希望他们不要把她反铐起来。
• Would you please draw together the snag in my cuff?请你把我袖口上的裂口缝上好吗？