They have only to provoke an enemy into an attack.
他们只要惹怒敌人， 使其发动进攻即可。
2
"They wanted to provoke me into a fight and even a shootout and that could have resulted in my death," he said.
他说：“他们想激怒我，迫使我跟他们打架，甚至枪战等激烈对抗，以便结束我的生命。”
3
HIV researchers hope to make a vaccine from a substance — usually a piece of the virus itself — that will provoke the immune system into releasing virus-fighting antibodies.