SIT ON

а. быть членом (комиссии); Please don't ask me to sit on any more committees this year б. разбирать (дело и т. п.); The police are still sitting on the mystery of the stolen jewels. в. собир. осадить; выбранить That boy will have to be sat on hard; he can't be allowed to behave like that. г. собир. скрывать, засекречивать We'd better sit on the jewels for several months, until it's safe to try to sell them. д. собир. тянуть с ответом, оттягивать (решение и т. п.) The shop has been sitting on my complaint for more than a month.