Tell everybody to get involved this activity.
告诉每个人都来参与这个活动.

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大家分得清楚 join 跟 get involved 之间的区别吗? 我想这样讲各位可能会比较明白, join 就是所谓的"参加" 而 get involved 是所谓的 "参与". 我想参加非参与, 参加是说成为某一个团体的新成员或是加入某一个活动, 而参与是指从事各项活动而言. 比如说社团现在有一个音乐会, 要请大家上台表演, 或是帮忙安排场地 , 你就可以跟大家说, "Everybody please get involved."

Tell everybody to get involved this activity.
Let's play a game, everybody please get involved.

Tell everybody to get involved this activity.
Let's play a game,everybody please get involved.

Tell everybody to get involved this activity.
告诉每个人都来参与这个活动.

get involved
参与
join 参加
Tell everybody  to get invovled  this activity

Tell everybody to get involved this activity.

tell everybody to get involved this activity.
we play a danceing game, everybody pls get involved.

get involvedcd参与
join 参加
everybody please get involved!!!
tell everybody to get involved this activity!

Tell everybody to get involved this activity