Translation

牧歌的な情景 / 平和で幸せな時期 / のどかな一幕

Meaning

An idyll is a peaceful happy scene, place, or period, often in the countryside or away from ordinary pressure. The word sounds literary, so it is stronger than vacation or quiet time.

Examples

• 彼らは湖畔でのどかな数日を過ごしました。
  They enjoyed a brief idyll by the lake.
• その村は都会の生活から離れた牧歌的な楽園のように見えました。
  The village seemed like a rural idyll far from city life.