求翻译：今天晚上我去参加了李江的生日宴会，大家玩的很开心。离开李江家里，天开始下雨。由于已经很晚了，我不得不步行回家.是什么意思？

I went to Li Jiang's birthday party this evening, we play a lot of fun. Leave the li Jiang's House, it began to rain. Because it was very late, I had to walk home.