引發一連串事件、最終導致損失的主要及有效原因，其間沒有任何新的、獨立的力量介入。
The dominant and effective cause that sets in motion a chain of events ending in a loss, with no new and independent force intervening.
引發一連串事件、最終導致損失的主要及有效原因，其間沒有任何新的、獨立的力量介入。
The dominant and effective cause that sets in motion a chain of events ending in a loss, with no new and independent force intervening.