1) 参见 outside 条。

2) to have seen the inside of 字面上是“看见过…的内部”，实际意义是“进去过某建筑物”。

• He has never seen the inside of a church.他从未进过教堂做礼拜。
• I wonder if you've ever seen the inside of an acoustics testing chamber.我不知道你是否进去过一间声学试验室。