魅影幽兰
challenge是挑战的意思provoke的确是挑衅的意思 但是书面语的气味太重了pick a quarrel with someone借故寻衅，向某人挑衅；故意和某人争吵口语中一般这样说
Charleswpf
defiance[di5faiEns]n.挑战, 蔑视, 挑衅defiancen.挑衅, 挑战违抗; 轻视be at open defiance with公然反抗bid defiance to (=set at defiance)对抗; 蔑视, 无视in defiance of无视, 不服从, 不顾The act or an example of defying; bold resistance to an opposing force or authority.Intentionally contemptuous behavior or attitude; readiness to contend or resist.in defiance of 公然挑衅In spite of; contrary to:went on strike in defiance of union policy.
友好环境
挑衅行为
翻译成英文是：act of provocation
双语例句：
The US has said that if the DPRK fires a rocket, that would be an act of provocation that goes against the Security Council rules.
美国表示如果朝鲜发射火箭，将是挑衅行为，并将违反安理会决议。
相关单词：
provocation
英[ˌprɒvəˈkeɪʃn] 美[ˌprɑ:vəˈkeɪʃn]
n. 挑衅，挑拨; 激怒，刺激; 愤怒; 愤怒的原因;
[例句]The Deputy Commander has condemned this weekend's protest as deliberate provocation.
副指挥官谴责本周末的抗议活动是蓄意挑衅。
[其他] 复数：provocations
