求翻译：上星期我和父母乘火车去了青岛，那里天气很好，我们去了美丽的海滩并在水里玩的很开心。是什么意思？

Last week, my parents and I take the train to go to Qingdao, where the weather was fine, we went to the beautiful beaches and playing a lot of fun in the water.