And the task is indeed difficult.
There are indeed difficult and complex issues to be addressed.
Indeed, "difficult" may be selling the challenge short.
The characteristics needed to ensure effective modelling are indeed difficult to measure.
Making the science comprehensible, said Mr. Frayn, whose academic background is in philosophy, was, indeed, difficult.
As the Saadé brothers would like it, Bargylus and Marsyas are indeed difficult to place.
It is indeed difficult to reconcile affirmative action with the nation's manifest ideals of individualism and merit-based competition.
— Older and hopefully wiser Determining culture and fit is indeed difficult for a high school student looking at colleges.
Some say that it is indeed difficult, but most have developed strategies to deal with the sweet sorrow.
Gaining resilience and enhancing risk resistance ability of CUPSs are indispensable but indeed difficult as it is determined by lots of influencing indicators.
In order to prove the efficiency of the proposed method a couple of nonlinear ordinary differential equations with mixed boundary conditions, indeed, difficult to approximate, are proposed.
