摘要
[单词精讲]1．puzzle n．难题；谜vt．＆vi．（使）迷惑；（使）为难[经典例句]Their reason for doing it is still a puzzle to me.他们为什么这样做对我来说仍是个谜。I＇ve been sitting here puzzling about what to do.我一直坐在这里苦苦思索该怎么办。Mary read the letter with a puzzled expressi on on her face．玛丽读信时面带困惑的表情。
