U-3:underdog 输家
A:The speech contest was over. To our surprise, Tom was the winner.
A:演讲比赛结束了，使我们吃惊的是汤姆获得了第一。
B:There was another surprise, that is, Peter was the underdog.
B：还有让人吃惊的呢，就是彼得在比赛中输了。
A:What? It's so unbelievable.
A：什么？真是难以置信。
B:But it's true.
B：但却是真的
