翻译两句英语。在线等。

At lifting heavy weights off the ground from between his feet, by means of a bar of iron passed through them, the bar placed against his knees as a fulcrum, and then straightening the spine and lifting them sheer up, Stephenson was very successful.
将一根铁棒穿过重物，并将铁条抵在膝盖上，然后以膝盖为支点，慢慢直起腰杆向上使劲，将两脚间的重物缓慢提离地面，斯蒂芬森旗做得太成功了！

On one occasion, they relate, he lifted as much as sixty stone weight in this way a striking indication of his strength of bone and vigour of muscle.
他们说：有次，他用该方法提起了60英石的重物。可想而知，他的骨头和肌肉是多么强悍。

在提升重物离开地面，从他的双脚，透过一家酒吧的铁通过他们来说，酒吧放在他的膝盖为支点，然后拉直脊椎和解除他们纯粹了，斯蒂芬森开得很成功。

有一次，他们的关系，他解除了多达六十石头的重量，这样的一个鲜明的标志，他的实力骨和魄力的肌肉。