कमज़ोर पड़ना angolul

crumble [crumbled, crumbling, crumbles]▼verb
[UK: ˈkrʌm.bl̩] [US: ˈkrʌm.bl̩]

slack off▼verb
[UK: slæk ɒf] [US: sˈlæk ˈɒf]