big dark horse的用法和样例：
- In the finals, Rodieck's match is this session of net biggest dark horse, from Israel's Beisela.
- Prior to this conservative betting scandal plagued the 2002 world champion Ebdon, with the Grand Prix qualifying biggest dark horse bedford fighting.
- "Wang reversal," Selby has been on a downturn Marco Fu, the semi-final encounter the biggest dark horse of this competition Walton.
- Young fellow Mr.Xu early morning/Sun outstanding is without doubt in this competition the biggest dark horse, they dropped down two games in the semi-final to eliminate Cai 赟/to pay the seamount.
- Anna's such a dark horse--I had no idea she'd published a novel.
- Jack is a dark horse; he never says much and you don't know what he's thinking.