to become crazy or mentally unstable
狂ってしまう、または精神的に不安定になる (kurutte shimau matawa seishinteki ni fuantei ni naru)
"My boss must have lost his marbles to approve such a risky project."
"上司はそんな危険なプロジェクトを承認するなんて、頭がおかしくなったに違いない。" (joshi wa sonna kikenna purojekuto o shonin suru nante atama ga okashiku natta ni chigainai)
unnoticed or undetected
to work at a second job, especially secretly or part-time
someone inexperienced leading others who also lack experienc...
to work closely and effectively with someone
to return to the right path or plan
a situation in which virtue is rewarded and vice is punished...
