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“These chimpanzees provide a model of the ecological conditions under which our earliest ancestors might have begun walking on two legs,
这些非洲黑猩猩提供了一种生态条件模型,在此模型下,我们人类的早期祖先也许刚刚开始用两只脚走路.
These chimpanzees 主语
provide谓语
a model of the ecological conditions 宾语
under which our earliest ancestors might have begun walking on two legs,定语从句
【英语牛人团】倾情奉献,脑力结晶,手工创作,满意请记得及时采纳哦,