英语翻译：我以前一直很想参加这个活动，现在终于有机会了，而且还每届都要参加

I've always wanted to participate in this event。Now I finally have the opportunity.And I will attend every single time from now on .

I've been willing to take part in this event. Now I've finaly got the chance and I will keep participating in it in the future.

I always wanted to join in this activity,now I finally got the chance,and I will join in every activities that are to be held.

I've always wanted to participate in this event, and now finally have the opportunity of, but also each to participate.