speed bag
noun[C]
mainlyUSuk/ˈspiːd ˌbæɡ/us/ˈspiːd ˌbæɡ/(alsopunching bag);(UKusuallypunchball)aleatherbagfilledwithair,hungfrom aframeorattachedto astandand used byboxersfortrainingorexercise:
（练习拳击时所使用的）速度球He's like achampionboxerworkingthespeedbag.他就像一个拳击冠军在进行速度球练习。
Thespeedbagworksyourshouldersandyourhand-eyecoordination.速度球可以锻炼肩膀，还可以锻炼手眼协调能力。
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- Ayoungboxerpoundsaspeedbagagainstitswoodenbase.
- Sheskippedrope,learnedfootworkand how tohitaspeedbag.
- Hisfeetwerehammeringthetracklike a boxer'shandson aspeedbag.
Exercising & training
- aerial yoga
- aerobic
- Anti-Gravity yoga
- aquacise
- aquarobics
- bench
- interval training
- jog
- jog trot
- jumping jack
- Kegel exercise
- kettlebell
- resistance training
- Spinning
- star jump
- sweat
- Swiss ball
- tai chi
- taper
- triceps dip