在家参加用英语怎么说

参加用英语可以用 participate 表示。participate 来源于拉丁语 participare，意思是“参加，分享，共同参与”。

例句：

I will participate in the meeting via video conference from home. 我将从家通过视频会议参加会议。
She decided to participate in the marathon even though she had never run one before. 她决定参加马拉松比赛，尽管她以前从未跑过。
They encouraged everyone to participate in the discussion. 他们鼓励每个人参与讨论。