discern weakness or vulnerability in an opponent
察觉到对手的弱点
(informal)begin to suspect trickery or deception
(非正式)察觉到有鬼
(N. Amer. informal)enjoy or appreciate what is often ignored
(北美，非正式)享受（或欣赏）常被忽略的事物
To suspect that something is wrong.
怀疑有些事情不对