求翻译：我在北京玩得很开心，我们第一天去参观了白宫，那儿的人真多；第二天我们去了长城；奥，对了，我们第三天参观了北海公园，那真有趣！我们再有时间一起去，我等着你！是什么意思？

I had great fun in Beijing, we visited the Tiananmen Square on the first day, the people there really much; the next day we went to the great wall; o, Yes, third day we visited the Beihai Park, that is really interesting! We'll have time to go, I'm waiting for you!