21. And I was finding it really, really difficult 22. Understanding difficult parts from knowledgeable people. 23. It was not difficult to imagine his own name among them . 24. For this reason the publishers became more difficult 25. And choosing, no matter how difficult it is, 26. I think that the fact that it's so difficult, 27. But it 's the extent of psychological trauma that 's difficult to gauge . 28. Found that it's very difficult to frown 29. But , in practice , this could be difficult to enforce . 30. A lot of the difficult negotiations we get involved in.
