1. He's always trying to second-guess his wife, but he never got it right.2. In a heist, the police must try to second-guess what the thief will do next in order to be always one step ahead.
 to second-guess somebody/something to guess what somebody will do to predict what somebody will do
揣測或預言某人的意圖 = to second-guess somebody = to second-guess what somebody will do例句的意思就是「他老是試著揣測老闆的意圖，但從未正確過」