1. sit on

1. He''s been sitting on my letter for months.
    他把我的信压了几个月。

1.

1. 为...的成员;压制：sit in 列席,旁听;不干预 | sit on 为...的成员;压制 | sit up 迟睡,熬夜;坐正

2. 为...的一员：sit on the lid 压制 | sit on 为......的一员 | sit out 袖手旁观

3.

3. 开会讨论：revive in 在......上复活 | sit on 开会讨论 | sit in 旁听

4. sit on的解释

4. 拖延,搁置：single out 选出,挑出 | sit on 拖延,搁置 | sit up 熬夜

1. 拖延;压着不办
    If you say that someone is sitting on something, you mean that they are delaying dealing with it.

    e.g. He had been sitting on the document for at least two months.
           他已经将这份文件压了至少两个月。