Daily Chinese Idiom Guessing Game
To take precautions before a crisis occurs; to prepare in advance for future needs.
绸缪紧密缠缚。天还没有下雨，先把门窗绑牢。比喻事先做好准备工作。
《诗经·豳风·鸱号》迨天之未阴雨，彻彼桑土，绸缪牖户。”
She saved money every month, truly practicing the principle of 'preparing for a rainy day'.