cau·sal·i·ty
noun/kɔːˈzæləti/
/kɔːˈzæləti/
(also causation)
[uncountable] (formal)- the relationship between something that happens and the reason for it happening; the principle that nothing can happen without a cause
因果关系；因果律（或性） Word Originlate 15th cent.: from French causalité or medieval Latin causalitas, from Latin causa ‘cause’.