adjective ダウンロード 🔗共有 断定的な, 自信に満ちた Boldly self-assured; confident without being aggressive. Examples : "My sister was assertive about her need for more sleep; she calmly but firmly explained why she needed a later bedtime. " 妹はもっと睡眠が必要だと断定的に主張し、なぜ就寝時間を遅らせる必要があるのかを落ち着いて、しかしきっぱりと説明しました。 character attitude communication quality person ability mind AIとチャット語彙ゲーム読解練習