然后，在细钢棍的两端，各固定一个小的金属球。
Then he fastened a small metallic ball on each end of the steel bar.
迈克坐在囚房，一个狱警走过来用一张监狱工厂的工作卡敲击钢棍，迈克露出了笑容。
Michael is in his cell. A C. O. walks up and taps on the bars with a P. I. work card. Michael smiles.
经历六次手术之后，还是有根30厘米(12英寸)的钢棍从他的小腿中伸了出来，离了拐杖他无法行走。
Six operations later, he still has a 30cm (12in) steel rod jutting out from his shin and cannot walk without crutches.
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