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来源:雅诚德英语网
However, when the lemmings' food supply becomes too low to support the population, a singular migration commences.
然而,当旅鼠的食物供应变得太少而无法维持种群时,一次特别的迁徙就开始了。
However, when the lemmings' food supply becomes too low to support the population, a singular migration commences.
然而,当旅鼠的食物供应变得太少而无法维持种群时,一次特别的迁徙就开始了。