The femoral nerve is divided into several dozen separate bundles of nerves, called fascicles, each of which contains hundreds if not thousands of individual nerves.
股骨神经分为一些单独的神经束，每一个神经束都包含了不是数千就是数百根单独的神经。
Tobacco smoke contains thousands of different chemicals which are released into the air.
烟雾包含几千种不同的化学物质，它们被释放在空气中。
Tobacco smoke contains thousands of different chemicals which are released into the air.
烟雾包含几千种不同的化学物质，它们被释放在空气中。
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