adjective🔗Share役に立つ、有用なHaving a practical or beneficial use."My new cookbook is very useful for learning how to cook healthy meals. "私の新しい料理本は、健康的な食事の作り方を学ぶのに非常に役立ちます。utilityfunctionqualityvalueabilityessentialChat with AIVocabulary GamePractice Reading
