ponta de linha angolul

cutting edge [cutting edges]▼(forefront, or position of greatest advancement in some field)
noun
[UK: ˈkʌt.ɪŋ edʒ] [US: ˈkʌt.ɪŋ ˈedʒ]

leading edge▼(forefront of practice or technology)
noun
[UK: ˈliːd.ɪŋ edʒ] [US: ˈliːd.ɪŋ ˈedʒ]