Definition
to idly dwell on someone or something you adore, often in a futile and impractical manner
徒然地思念
She often moons over her old flame, even though she knows he no longer loves her.
她經常徒然地思念她的舊情人，即使她知道他不再愛她。
He always moons over those perfect vacations but never plans the next trip.
他總是徒然地思念那些完美的假期，但從未計劃下一次旅行。
After summer ended, he often mooned over that beach but did nothing to arrange a return.
夏天結束後，他經常徒然地思念那個海灘，但沒有安排重返的計劃。