日期:
来源:雅诚德英语网
North and South American species migrating across the Isthmus now came into competition with each other.
北美和南美的物种迁徙穿过地峡,现在开始互相竞争。
North and South American species migrating across the Isthmus now came into competition with each other.
北美和南美的物种迁徙穿过地峡,现在开始互相竞争。