In many monkeys and apes , face-to-face contact is essentially antagonistic .
对于许多猴子和类人猿，面对面的目光接触，基本上意味着敌对。
Form antagonistic relationships with all their friends
和对方的所有朋友建立敌对关系
India and pakistan , mutually antagonistic , account for a fifth of all living humans , yet their bilateral trade is puny , at less than $ 3 billion a year .
