sit in on
短语
大学
列席, 旁听
词形变化
sat in on
sits in on
三单
sits in on
sitting in on
sitting in on
现在分词
sat in on
过去式
sat in on
过去分词
释义与例句
v.
-
1.
To attend a private meeting or class without participating.
Parents of younger children often become upset when they are told that they cannot sit in on the psychological assessment.