to work jointly on a specific project or task
совместно работать над конкретным проектом или задачей (sovmestno rabotat' nad konkretnym proyektom ili zadachey)
"Both companies agreed to collaborate on the new software product."
"Обе компании согласились сотрудничать над новым программным продуктом." (Obe kompanii soglasilis' sotrudnichat' nad novym programmnym produktom.)
to cause something to happen
to write something so it can be used later for a purpose
to face difficult situations with courage and effort
to accept new or difficult tasks
to oppose or disagree with someone or something
to express your opinions or defend your feelings confidently
