碎片英文是fragment。
例句：
1、现在，我能拿到这块美丽的行星碎片是因为。
Now, the reason I have this beautiful asteroid fragment is because.
2、金属碎片和其他残骸可能被轮子甩出来。
fragment of metal or other debris may be flung off the wheel.
3、他利用这颗牙齿来吸引人们对于口腔癌的关注，并且让他的妹妹将牙齿碎片应用到列侬头部的雕像上。
He's used the tooth to draw attention to mouth cancer and even let his sister use a fragment for her sculpture of Lennon's head.
4、腰椎间盘碎片在前硬膜囊外间隙中游走路径的MRI观察。
MRI observation of migration paths of disk fragment in the anterior epidural space.
5、我们也证实，用三维CT能更加准确地放映出骨折线的方向以及骨碎片所在的位置。
We also confirmed the direction of the fracture line and the location of the fragment more accurately with three-dimensional computed tomography.
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