make hay
抓住机会，利用有利条件来迅速行动
口语·鼓励抓住机会
英文释义
to make the most of a situation or opportunity; to take advantage of a favorable set of circumstances
例句
The market is booming—let's make hay while we can.
典故来源
源自农业谚语，晒干草需趁晴天，比喻抓住时机快速行动。