事的英語翻譯：

accident; affair; be engaged in; business; job; matter; responsibility; serve
thing; trouble; work

故的英語翻譯：

reason; cause; hence; therefore; die; former; old; friend; happening
on purpose

電源的英語翻譯：

electrical source; power source; power supply
【計】 power source; power supply; PS; supply power
【化】 current source; electric source; power source; power supply
supply source