join in

1. 加入，参加（活动）
If you join in an activity, you take part in it or become involved in it.

join in

e.g. I hope that everyone will be able to join in the fun...
我希望每个人都能够加入进来，玩得开心。
e.g. He started to sing and I joined in.
他开始唱起歌来，然后我也跟着唱起来。

1. 参加,加入：involve in 涉及;卷入;陷入;使进入;使连累 | join in 参加;加入 | jump to a conclusion 草率决定;贸然断定

2. 参加(活动)：join hands with 互相合作,携起手来 | join in 参加(活动) | join up 参军,入伍;联合起来

3. join in的近义词

3. 参加(某种活动)：297 it used to be 过去的情况是...... | 298 join in 参加(某种活动 | 299 lay emphasis on 强调;