Strong core
健美的肌肉
Using a range of gym equipment, including a medicine ball and balancer, Martha Hunt proved that a strong core is essential. It's no surprise that they've all got impeccable abs.
玛莎 亨特经常练习实心球和平衡器等健身器材，而她健硕的肌肉也造就了完美身姿。怪不得她们都有完美无瑕的腹肌。
Martha Hunt
