Though the movie was very boring, he sat it out to see how it ended.尽管电影很无聊，他还是为了看结尾熬到了最后。

She sat out several dances/practices.几次舞蹈/训练她都没参加。

You can start the game without me. I'm going to sit this one out.你们玩吧，这一局我不参加了。