unbiased sample

基本解释

First, we needed a representative, unbiased sample of news stories, so we bought every one of the top 10 bestselling UK newspapers, every day for one week.
首先我們需要一個具有代表性，竝且公正的新聞報道樣本，所以我們持續一個星期每天購買英國前10名最暢銷的報紙。
To find out, you'd have to take a systematic and unbiased sample – perhaps a whole week's worth of stories – and then check the evidence behind every claim.
爲了找到答案，你就必須採取系統和公正的樣本——也許是值得花一整個星期去探究的案例——然後去查每一項主張後的証據。
With a pristine and unbiased sample of interstellar dust they can truly find out if and by how much the elements of our own world differ from others throughout the galaxy.
通過這些原始的無偏見的星際塵埃樣品，人們能真正找出究竟我們的太陽系同銀河中的其它星球是否有元素差異以及相差多少。