1、She gazed wistfully out of the window, remembering her carefree childhood.
她怀旧地凝视着窗外，回忆起她无忧无虑的童年。
2、He looked wistfully at the happy couple, longing for a love like theirs.
他渴望地看着那对幸福的夫妻，渴望拥有像他们那样的爱情。