to become crazy or mentally unstable
сойти с ума или стать психически нестабильным (soyti s uma ili stat psikhicheski nestabilnim)
"My boss must have lost his marbles to approve such a risky project."
"Мой босс, должно быть, сошёл с ума, одобрив такой рискованный проект." (moy boss dolzhno byt soshol s uma odobriv takoy riskovanniy proyekt)
to leave for a destination
to believe that you are valuable and deserve respect
to gain someone's trust through actions or reliability
what is normal or expected in a given situation
to prepare for all possible situations
To start something enthusiastically without hesitation.