求翻译：我很抱歉，我这个星期六很忙，不能去参加你的生日聚会。在星期六的上午我要去参加英语竞赛，下午要去足球俱乐部而晚上我要去爷爷家吃饭对你的邀请我感到十分歉意。是什么意思？

正在翻译，请等待...

I am sorry, I this a Saturday is busy and cannot be to consult with your birthday mylar will be. On a Saturday of 8am I want to reference plus in voice 竞 赛, pm to soccer built 乐 portion and at night I want to 爷 爷 home eat 饭 to your invitees do i We apologize for any inconvenience.

I was sorry very much that, my this Saturday is very busy, cannot attend your birthday meeting.I must participate in English competition on Saturday morning, but must go to the soccer club in the afternoon evening I to have to go to grandfather the family to eat meal to you invites me to feel extrem

I'm sorry, I'm busy this Saturday to go to your birthday party. On Saturday morning, I want to go to an English contest, going to the football club in the afternoon and at night I go home to dinner to your invitation, I feel very sorry.

正在翻译，请等待...