positive effect of antagonicity

例句：

1. 1. The two sides are in antagonism over the issue of trade.
   双方在贸易问题上存在对立。
2. 2. Antagonism between nations can lead to war.
   国家间的对立可能导致战争。
3. 3. The scientist's research challenged the prevailing theories of the field.
   科学家的研究挑战了该领域的主流理论。