un par un angolul

one by one▼◼◼◼(individually)
adverb
[UK: wʌn baɪ wʌn] [US: wʌn baɪ wʌn]

one at a time▼◼◼◻(individually)
adverb
[UK: wʌn ət ə ˈtaɪm] [US: wʌn ət ə ˈtaɪm]