堅固 angolul

stable [stabler, stablest]▼(relatively unchanging)
adjective
[UK: ˈsteɪb.l̩] [US: ˈsteɪb.l̩]

sturdy [sturdier, sturdiest]▼(of firm build)
adjective
[UK: ˈstɜː.di] [US: ˈstɝː.di]