Climbing Mount Everest is a formidable challenge for even the most experienced climbers.
Восхождение на Эверест — это трудная задача даже для самых опытных альпинистов.
Definitions
A formidable challenge refers to a task or obstacle that is difficult to overcome due to its complexity, scale, or the skills required, often evoking a sense of respect or fear due to its demanding nature.