освежать betyder på engelska

brush up▼(to improve a rusty or underdeveloped skill)
verb
[UK: brʌʃ ʌp] [US: ˈbrəʃ ʌp]

refresh [refreshed, refreshing, refreshes]▼(to renew or revitalize)
verb
[UK: rɪ.ˈfreʃ] [US: rə.ˈfreʃ]