► 名詞効力 [(1)こうりょく] [liter]
meaning: effect rank: 2☆ この
薬の効力は
一時的だ ⇨ The effect of this medication is temporary
☆
法律の効力は
遡及しない ⇨ The effect of the law is not retroactive
効力 [(1)こうりょく] [liter]
meaning: effective rank: 2☆
薬の効力 ⇨ The efficacy, potency, of a medication