puzzle over

1.She puzzled over the postmark on the letter.

她想弄明白信封上的邮戳。

2.They puzzled over the question for quite a while.

这问题他们苦苦地想了很久。

3.The old general was puzzling over the old map.

老将军对着那旧地图苦苦思索着。

4.He puzzled himself over the matter.

他对那件事绞尽脑汁。

5.I puzzled over the problem for ages before the light suddenly dawned on me.

我对这个问题冥思苦想了很久才朗。