The skillful repair of fine lace entails slow and painstaking work.

对精致花边的熟练修补需要缓慢而极度细心的工作。

To achieve such a realm, painters have decades of painstaking work can not be.

要达到这般境界，画家非有几十年的苦心修练不可。

Making this transformation - and it is a transformation - requires painstaking work and it takes time.

进行这种转变——这是一种转变——需要艰苦的努力，也需要时间。

Now, we have learned that, in our system, getting trade deals right is challenging, painstaking work.

我们认识到，在我们的体制内，达成适中的贸易协定要通过艰难和痛苦的努力。

Now we were finally ready to begin the painstaking work of building the first evolving intelligent system.

现在我们最终准备好开始首个进化智能系统的辛苦构建工作。