A：Peter really is a remarkable expert! There is very little he doesn’t know.
Peter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.
我有同感，今天下午他给我解释股市的来龙去脉，他在投资方面见多识广。