join in
US /dʒɔɪn ɪn/
UK /dʒɔɪn ɪn/

短语动词
1.
加入, 参与
participate or become involved in an activity with others
示例:
•
Everyone was singing, so I decided to join in.
大家都在唱歌,所以我决定加入。
•
Don't be shy, just join in the game!
别害羞,直接加入游戏吧!
在 Lingoland 学习这个单词