tűzpróba angolul

crucible [crucibles]▼◼◼◼noun
[UK: ˈkruː.sɪb.l̩] [US: ˈkruː.səb.l̩]

ordeal by fire▼◼◻◻noun
[UK: ɔː.ˈdiːl baɪ ˈfaɪə(r)] [US: ɔːr.ˈdiːl baɪ ˈfaɪər]

crucial test▼noun
[UK: ˈkruːʃ.l̩ ˈtest] [US: ˈkruːʃ.l̩ ˈtest]