Cupnightsky
see light suddenly/ come to understand suddenly/ suddenly realize/ suddenly understand what is said [seen]
小雨后哒晴天
恍然大悟 [huǎng rán dà wù] [词典] see light suddenly; A light breaks in upon sb.; be a revelation to someone; be suddenly enlightened; take a tumble; [例句]他们相互看了看，脸上都是同一种表情，恍然大悟、惊讶，而又如释重负。They turned to one another with the same expression of dawning comprehension, surprise, and relief.
