求翻译：今天晚上我们说去游泳，大家都很开心。我们坐车来到那里，进去时却让我们失望了，那里竟然关门放水。我们只好失望的回家了。是什么意思？

We say go for a swim in the evening, everyone was happy. We arrived by car there, but has let us down, there should be close drain. We had to go home disappointed.