To have a secret plan or idea.
Иметь скрытый план или идею. (Imet' skrytyy plan ili ideyu.)
"Don’t worry, he has something up his sleeve for the project."
"Не переживай, у него есть что-то за пазухой для проекта." (Ne perezhivay, u nego **yest' chto-to za pazukhoy** dlya proyekt.)
to not lose confidence or courage
clearly defined; without confusion or ambiguity
acting impulsively or emotionally, without thinking
to stop fighting and become friends again
to remain valuable or successful for a long period of time
To radically change an industry with innovation.
