こうりょく
Noun
1.
effect, efficacy, validity, potency
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科学的な実験で、その物質の効力が証明された。
The efficacy of that substance was proven in a scientific experiment.
ワクチンの効力は、接種後数ヶ月で低下する可能性がある。
The efficacy of the vaccine may decrease several months after vaccination.
新しい法律は、来月から全国で効力を発揮する予定だ。
The new law is expected to take effect nationwide from next month.
Kanji that make up this word
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