短語(yǔ)詞組短語(yǔ)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 的繙譯是碰到一個(gè)線索;偶然地發(fā)現(xiàn)一條線索 返回 stumble across