At its most basic, this means four-eye review, but in practice far more people can be involved.

这意味着至少要通过两个人审校，但在实践中，审校者可能更多。

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A bird's-eye view of China would indicate that China's terrain descends in four steps from west to east.

从高空俯瞰中国大地，地势像四级阶梯，自西向东，逐级下降。

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On the ground, each of the four Very Large Telescopes is busy keeping an eye on the distant universe.

在地面上，四个超大型望远镜中的每一个都忙碌着，凝望着遥远的宇宙。

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True, the law ministry recently proposed changing the burden of evidence in rape cases, but its suggestion was not a liberal triumph: still four eye-witnesses, but only three of them need be Muslim males.

ECONOMIST: Islamist militancy is alive and well

Under General Zia, the only sincerely pious leader, Pakistan introduced draconian sharia punishments, made blasphemy a capital offence and ruled that unless rape victims could produce at least four male Muslim eye-witnesses they would be held guilty of fornication, a serious crime.

ECONOMIST: Islamist militancy is alive and well

The ownership of four listed buildings, including eye-catching Italianate towers, could be transferred to Leeds City council.

BBC: Holbeck's landmark towers in transfer deal