Challenge-response
挑战-应答
🧩 词语组成解析
challenge
['tʃælɪndʒ]
n. 挑战;盘问;质疑;怀疑;
vt. 质疑;向…挑战;
vi. 提出挑战，要求竞赛（或竞争）;驳斥;
🗣️ 情景例句
I have an idea that may solve the problem for him
我有个主意他也许能解决这个问题
We are scheming to secretly cross the enemy territory.
我们在秘密商定穿越敌占区的计划。
Where do you want me to sign?
你要我签在哪里？