to come upon unexpectedly or by chancestumbled on some old family photos when she was cleaning out a drawer
stumbled on some old family photos when she was cleaning out a drawer
chance (upon), encounter, find, happen (on or upon), hit (upon), light (on or upon), meet, pitch (upon), tumble (upon)
luck (out, on, onto, or into)confront, facediscover, strike, turn up
bump into, come across, run across, run against, run into, run upon
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。