underdog
n. 比赛中不被看好者；失败者；受压迫者；斗败了的狗；黑马
例句
Capone was an underdog hero, a poor boy who made it big.
卡彭是个草莽英雄，一个飞黄腾达了的穷小子。
《柯林斯英汉双解大词典》
Most of the crowd were cheering for the underdog to win just this one time.
人群中大多数人在为那位处于劣势者赢得一次比赛而加油鼓劲。
"I identify with the underdog," he said.
“我比较认同失败者，”他说。
