a. 反对的, 对抗的
1. The oppositional party criticized the government's new policy.
反对党批评了政府的新政策。
2. Her oppositional behavior often led to conflicts with her teachers.
她的对抗行为常常导致与老师的冲突。
3. They held an oppositional view on the issue of climate change.
他们在气候变化问题上持有对立的观点。