短語詞組短語stumble e across 偶然發(fā)現(xiàn)stumble across on 偶遇;碰巧發(fā)現(xiàn)to stumble across a clue 的翻譯是碰到一個線索;偶然地發(fā)現(xiàn)一條線索 返回 stumble across