这些濒临灭绝的、性情温顺的大型动物属于高度群居的动物。These endangered gentle giants are highly social animals.群居的动物是靠气味维系群体的.Most animals that live in herds depend on smell to keep together.狼是群居的“猎手”,聚集成群一起攻击猎物.Wolves are social hunters . Pack me...
Discuss pollution with your child, emphasizing how nice a clean street, lawn, or park looks.和孩子讨论污染问题，强调清洁的街道、草地或公园有多么美丽。He listened in silence as Niccolini rattled on, emphasizing his remarks with one hand and steering ...