拳击沙袋 /quánjī shādài/ angolul

punching bag▼(tough bag punched or kicked when practising sports such as boxing or martial arts)
noun
[UK: ˈpʌntʃ.ɪŋ bæɡ] [US: ˈpʌntʃ.ɪŋ ˈbæɡ]