背心 /bèixīn/ angolul

muscle shirt▼(sleeveless shirt tailored to display the muscles of the body)
noun

singlet [singlets]▼noun
[UK: ˈsɪŋ.ɡlɪt] [US: ˈsɪŋ.ɡlɪt]

vest [vests]▼(garment worn over a shirt)
noun
[UK: vest] [US: ˈvest]

waistcoat [waistcoats]▼(a sleeveless, collarless garment)
noun
[UK: ˈweɪ.skəʊt] [US: ˈweɪskoʊt]