日本国憲法第45条
The term of the members shall be four years, but it may be terminated at an earlier date by dissolution of the Diet as provided herein.
衆議院議員ノ任期ハ四年トスルコト但シ衆議院解散ノ場合ニ於テハ其ノ期間満了前ニ終了スルコト
国会議員ノ任期ハ四年トス然レトモ此ノ憲法ノ規定スル国会解散ニ因リ満期以前ニ終了スルコトヲ得