2013年4月gre考试:gre阅读重点解析(六)
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,即由于种籽偶然粘附在羽毛上;或者是通过内部方式,即由于鸟类吞食果子并随后将种籽排泄出来。 ...