Ruso ⇄ Inglés

представлять собой сложную задачу acentos
gen.	constitute a difficult task (VLZ_58)
dipl.	be challenging (Alex_Odeychuk)
form.	be a challenge (Building an industrial facility of this type is a challenge, and we have consulted with neighbouring residents and businesses for years regarding the project. – представляет собой сложную задачу ART Vancouver)