When the flowers in the garden suddenly glowed, she was sure fairies were playing there.

fairies 是 fairy 的复数形式。fairy 指"仙女、精灵"，源自欧洲民间传说中具有魔法的小型超自然生物，通常被描绘为长着翅膀、会施展魔法的可爱形象。在童话故事中，fairies 常被描述为居住在森林或花园里的神奇生物。