生活口语习语大全T-14：the ins and outs 来龙去脉(mp3和文本下载)

脱口说英语口语生活习语

T-14：the ins and outs 来龙去脉

A:Peter really is a remarkable expert! There is very little he doesn't know.
A:彼得真是个了不起的专家！他知识渊博。

B:I have exactly the same feeling. This afternoon he explained the ins and outs of the stock market to me. He knows a lot about investments.
B：我有同感，今天下午他给我解释了股票市场的来龙去脉，他在投资方面见多识广。