句中的 explore 意思是 to travel over or through (a place) in order to learn more about it or to find something，一般的词典将其翻译成“勘查”“探测”“实地考察”，其实用这些意思来翻译 explore 时，常常觉得很别扭。其实可根据语境翻译成“探访”“游逛”“游览”等。如：

She also made friends and began to explore the city with them. 她还结交了一些朋友，并开始与他们一起游玩这座城市。

They set out on foot to explore the city. 他们步行出发去探访这城市。

In between two meals we explored the city. 我们在两顿饭之间的时间游览了那个城市。

Our tour guide was nowhere to be seen, so we set off to explore the city alone. 我们的导游不见了，所以我们就自己在城里游逛。