求翻译：这真是一个令人遗憾的旅行是什么意思？

This is a regrettable Travel

This is really an unfortunate travel

This really is a regrettable travel

It's a really unfortunate travel

This summer my parents and I take the train to Shanghai Expo. It took three hours to that. Where every day hundreds of thousands came to the Expo, the China Pavilion has become one of the most popular venues. I always wanted my dream to go to Shanghai a success. Shanghai is a great city I will go ag