underdog 输家
【讲解】
该词原意为“在斗争处于劣势的人或动物，牺牲者，受迫害者，倒霉的人”等，现喻指“弱者”或“在竞选、比赛中的输家”。
【对话】
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。