Sentence examples for were hard to attain from inspiring English sources

"The skills that you needed ten years ago to do modelling and matte painting were hard to attain," he said.

But a broad audience and impact, two goals of traditional journalism, have been hard to attain.

Nevertheless, without a clear understanding of the occurred phenomena, an optimal design will be hard to attain.

Japanese officials acknowledge in private that the country needs a great leap in productivity, which is hard to attain at a time when the workforce is shrinking due to the ageing population.

Economic equality would be hard to attain, but Roosevelt asserted that political democracy would have no meaning without government intervention to cushion the poor and tame the excesses of the rich.

Therefore, the distance between the nodes should be computed accurately for any group communication, which is hard to attain with the traditional clustering techniques.

Although automatic faces recognition has shown success for high-quality images under controlled conditions, for video-based recognition it is hard to attain similar levels of performance.

Automatic face recognition for still images with high quality can achieve satisfactory performance, but for video-based face recognition it is hard to attain similar levels of performance.

The Cuban economy is in dire straits and requires infusions of capital that will be hard to attain without significant US engagement.

Such an approach has led to an analytic expression for error estimation of the restored images in our method as well as simple parameter setting for real applications, both of which are hard to attain in many regularization-based methods.

I knew, vaguely, that it was hard to attain a fiancé visa, and exponentially harder to attain a green card.