1·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.
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。
2·Scientists have discovered a key protein in the renal tubes of these mosquitoes that helps with the necessary excretion.
科学家们在蚊子肾部的导管中发现了一种关键的蛋白，它能帮助蚊子进行必要的排泄。
3·We likely evolved this intricate web of nerves to perform digestion and excretion "on site, " rather than remotely from our brains through the middleman of the spinal cord.
我们的神经系统有可能如此进化，越来越复杂，实时消化和排泄，而勿需大脑通过脊髓中间人遥控指挥。
4·Alcohol can inhabit the excretion of uric acid.
酒精可以抑止尿酸的排泄。
5·But in terms of — excretion — don't get your hopes up.
但说到——排泄问题——你先不要寄予太高希望。