to add something extra, especially at the end
добавить что-то дополнительное, особенно в конце (dobavit' chto-to dopolnitel'noe, osobenno v kontse)
"They tacked on a brief Q&A after the session."
"Они добавили краткую сессию вопросов и ответов после заседания." (Oni **dobavili** kratkuyu sessiyu voprosov i otvetov posle zasedaniya.)
to go shopping for a long time until you are tired
to become less angry or upset
to be born into a rich family
to introduce something that significantly alters an industry...
to have a part in something
to be in control of a situation