The tooth also had all the components of normal teeth, including enamel, crown and root, and connective fibers to fix it to bone.

培育的牙齿还具备正常牙齿的所有组成成分，包括釉质、齿冠和牙根，以及使其固定于骨头的结缔组织纤维。

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The epiglottis is a leaf shaped cartilaginous structure located behind the hyoid bone and root of the tongue.

会厌是叶子形状的软骨结构位于舌头的舌骨和根。

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Conclusion: Bone marrow stromal cells play an important role in promoting the vitality and growth of dorsal root ganglia cells.

结论：骨髓基质细胞对于背根神经节细胞的活力以及神经突起生长有一定的促进作用。

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Sales have risen steadily since, with Waterlase winning subsequent approvals for root canals in January 2002, bone surgery in February 2002 and root canal complications in February 2003.

FORBES: Magazine Article

Yet there is another, more obvious bone of contention, which exacerbates all these others and lies at the root of them: the 4, 000km border that runs between the two countries.

ECONOMIST: India and China