I'm glad to hear your cat is still alive after that difficult operation.
Soil clean-up is a difficult operation with very high costs.
I had a difficult operation this afternoon.
Implementation was a difficult operation, but the process had to be completed in spite of the difficulties encountered.
La mise en œuvre était une opération délicate, mais ce processus devait être mené à son terme en dépit des difficultés rencontrées.
Having participated in a small part of that difficult operation I can tell you that your efforts were very much appreciated.
Ayant moi-même modestement participé à cette difficile opération, je peux vous dire que vos efforts ont été grandement appréciés.
It was therefore there that was defined the controversial and difficult operation "Catapult" which repercussions were considerable for the fate of former comrades in arms.
Ce fut donc la controversée et difficile opération "Catapult" dont les répercussions n'ont pas fini de faire couler de l'encre...
Correct sampling is a difficult operation which requires the greatest of care.
Un échantillonnage correct est une opération difficile qui exige le plus grand soin.
This is not a difficult operation to perform.
Ce n'est pas une opération difficile à exécuter.
She had to undergo a difficult operation.
Elle a dû subir une opération difficile.
There's only one doctor who can handle such a difficult operation.
Il n'y a qu'un médecin qui peut gérer une telle opération difficile.
A difficult operation, though not an impossible one.
Opération difficile, non impossible, pourtant.
Tracheal intubation is a difficult operation in the nursing operation process.
L'intubation trachéale est une opération difficile dans le procédé soignant d'opération.
Penetrating this subject - we repeat, without characterizing it - is a difficult operation.
Pénétrer dans cet objet, qui, répétons-le n'est pas à caractériser, constitue une opération difficile.