surprise, surprise idiom
（表示不赞同的事情在预料之中发生）真是意外啊
said when someone has done something or when something has happened in a way that you expected and that you do not approve of
"I've forgotten my keys again." "Surprise, surprise!" “我又忘记带钥匙了。”“真是意外啊！”
（表示发生了让人感到惊喜的事情）太让人意外了
said when you are telling someone about a situation in which something unexpected and pleasant has happened
I asked him if he wanted to come to dinner, and surprise, surprise, he said yes! 我问他想不想来吃晚饭，太让人惊喜了，他竟然答应了！