您的问题很简单.百度知道很高兴帮助您解决您提出的问题. 原句:如果明天下雨,他们玩得很开心. 翻译:If it rains tomorrow,they will have a good time. 或者:If it rains tomorrow,they will have great fun. 他们玩得很开心.:They have great fun;They had a good time, 旅行期间他们玩得很开心. They had a good time during the journey 百度知道永远给您最专业的英语翻译.