Obversion
n. 转向, 形成对立
🗣️ 情景例句
Tell him, Philip.
告诉他， Philip。
I'll work for the next 5 days.
我要工作5天（从明天算起）
Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.
作出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。