home free
无忧无虑；安全到达目的地或完成目标
口语·表达安全完成目标
英文释义
safe or successful, often after having overcome a difficult situation
例句
Once we finish this exam, we're home free for the summer.
典故来源
源自赛跑或比赛，指接近终点时安全无忧，后引申为克服困难后的轻松状态。