更有可能的是鸟类运输：或者是通过外部途径，即种籽偶然附着在羽毛上；或者是通过内部途径，即鸟类吞食果实并随后将种籽排泄出来。

More probable is bird transport, either externally, by accidental attachment of the seeds to feathers, or internally, by the swallowing of fruit and subsequent excretion of the seeds.

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人体排泄水液的途径主要是尿与汗。

The body discharges fluid through urination and sweating.

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肺，小肠，大肠可能是纳米粒子排泄的另外途径。

Lung, small intestine and large intestine may also be excretion pathways.

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