昨天在生日晚会上他们玩得很开心的翻译：On his birthday party yesterday they had a good time 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Birthday party yesterday, they have fun

On his birthday party yesterday they had a good time

Yesterday they played at the birthday party very much happy

Yesterday evening at the date of his birth when they played very happily

On his birthday party yesterday they had a good time