Your plan fell down when it proved too costly.

你的计划是不切合实际的，因为它被证实耗资太大。

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Having proved the principle in a single-unit device, Kim and Han plan to produce a 100-unit device to demonstrate the scaling-up of the process, followed by a 10,000-unit system.

在单个元件上成功应用后，金和韩计划做100个单元来证实规模化对处理结果的影响，以及再做一个一万片单元的系统。

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That was a practical plan, but, owing to a change of circumstances, it no longer proved practicable.

那是一个实际的方案，但由于情况的改变，它变得不适用了。

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Mr Bloomberg said there was no evidence New York was currently a target, but that the Tsarnaevs' alleged plan proved the city remained a prime location for people who want to "bomb and kill Americans".

BBC: Boston suspects 'targeted New York's Times Square'

That plan proved more costly than expected, and the jury is still out on whether the decision to partner with the National Center for Missing and Exploited Children to provide free AMBER alerts on missing children will drive wireless phone subscriptions.

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And Integral's plan has proved successful for a number of artists such as The Gossip, Jose Gonzales and Go Team.

BBC: Music giants change their tune