到底是 join 还是 join in a group.I intend to join (in) your research group.

到底是 join 还是 join in a group.I intend to join (in) your research group. 是JOIN SB 还是JOIN IN SB ,JOIN,JOIN IN,TAKE PART IN 有什么区别? 是join in army还是 join in a army? take part in 是等于 join还是join in? 请问：是join in party（派对） 还是 join party 是join the game还是join in the game join hands 对吗,还是join in hands join organizations还是join in organizations 是attend the party 还是take part in 还是join in还是join并且给出理由 join join in 区别? 是join in the event还是 join the event? 活动event,不知好用join in吗? 英语翻译是join the party还是join in the party?有没有in啊? 参加时装秀是join the fashion show还是join in the fashion show 参加这次活动是join the activity还是join in this activity ? 加入俱乐部中加入用join还是join in? join the club还是join in the club 参加English club 用join还是join in join sb in doing还是join sb doing