This might not be so difficult to achieve because, actually, we experience it every day.
This will be hard to achieve because, in the past decade, the growth in agricultural yields has stalled and water has become a greater constraint.
The second goal of oligo probe optimization is also hard to achieve because little consensus currently exists on how to validate and optimize array probes.
Even more worryingly, too many students fail to achieve because of poor teaching.
This is hard to achieve, because dissenting opinions often get interpreted as personal attacks.
Such backing would be difficult to achieve because pacifism enjoys continuing popular support.
"There are some things he can achieve because of who he is," she says.
But we haven't let ourselves look realistically what we can achieve because we don't really know".
The other step is even more difficult to achieve, because it requires the softening of hearts.
The recession has made this harder to achieve, because tax revenues are falling just as welfare payments start to rise.
Mr. Chavan argued Sunday that reforms are difficult to achieve because there is no political consensus on them.
