His behaviour that night puzzled me for a long time. 他那天晚上的行为使我好长一段时间都感到迷惑不解。

puzzle out who/what/why etc She seemed to be trying to puzzle out who the caller might be. 她好像在苦苦思索打电话的人可能是谁。

I’ ve puzzled over this question for a while, and I’ m still not sure what the right answer is. 这个问题我绞尽脑汁地想了好长时间，还是不能确定正确的答案是什么。