If you only want to work four hours a day, then be ruthless about it.

如果你一天只想工作四个小时，那么就要对它无情。

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In order to get the important things done, we have to be ruthless at removing distractions.

为完成重要的任务，我们必须坚决地消除干扰。

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Just remember to be ruthless about reducing chaos and getting back to a normal routine first.

请记住首先要冷漠无情地减少混乱的事情并回归正常轨道上。

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As Neil Kinnock and John Major found to their cost, the paper's campaigns can be ruthless and relentless.

BBC: The PM, the Sun and the dead soldier

But he can also be ruthless, threatening to leave Tampa if the city did not pay for a new stadium.

BBC: SPORT | Football | My Club | Man Utd | In search of the Glazers

We ought to be ruthless about searching out improper behaviour.

BBC: Police corruption: Gifts and second jobs to go on register