sit in on

片語動詞所屬單字sit

sit in on — 片語動詞

1. To attend a meeting or class as an observer without participating.

1.片語動詞
釋義

旁聽

To attend a meeting or class as an observer without participating.

例句

The new teacher sat in on a few classes to learn the methods.

I sat in on the board meeting but did not vote.