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
Most of what we see in the fashion shows is quite impractical for daily wear.
时装表演上我们所看到的大多数服装并不适合于做日常衣着。
This is a radio.
这是一台收音机。
I shall insist that they do from now on. Eating cabbage will keep them healthy.
我要他们从现在起就吃（醋泡白菜）。吃白菜会使他们的身体保持健康的。