効き目（ききめ）
効き目 (效验) · noun · JLPT N1
Examples
この薬はすぐに効き目が出て、頭痛が治まりました。
This medicine took effect immediately, and my headache went away.
Practise the thinking. Keep the judgement.
Practise the thinking. Keep the judgement.
効き目 (效验) · noun · JLPT N1
この薬はすぐに効き目が出て、頭痛が治まりました。
This medicine took effect immediately, and my headache went away.