He finds it difficult to keep in touch with everyone.
It is difficult to keep the secret when everyone keeps asking questions.
He found it difficult to keep the peace between his two best friends.
Without a working radar, it is difficult to keep on course properly.
The wind was strong topside, making it difficult to keep hats on.
Le vent était fort sur le pont, rendant difficile de garder son chapeau.
The mind-numbing repetition of the exercise made it difficult to keep anyone engaged.
La répétition ennuyeuse à mourir de l'exercice a rendu difficile de garder quiconque engagé.
In reality it is very difficult to keep the green tea.
En réalité c'est très difficile de garder le vert du thé.
It has been difficult to keep the lights on this last year.
Il a été difficile de garder l'électricité, depuis un an.
It would be difficult to keep the study within manageable limits.
Il serait difficile de garder l'étude dans des limites gérables.
We find it difficult to keep young francophones in our high school.
Il est difficile de garder les jeunes francophones du secondaire chez nous.
Seasand was everywhere, making it difficult to keep our towels clean.
Il y avait du sable partout, rendant difficile de garder nos serviettes propres.
In winter it is difficult to keep the temperature warm enough.
En hiver, il est difficile de maintenir une température élevée.
It was getting really difficult to keep a good balance with my backpack.
Il était difficile de garder un bon équilibre avec mon sac à dos.