- the first point scored or advantage gained in a contest
- David Rodriguez helped Albion draw first blood with his first goal for the team.大卫·罗德里格斯（David Rodriguez）帮助阿尔比恩（Albion）为球队取得了第一个进球。
- First blood went to Dimitrov as he won eight straight points.迪米特洛夫（Dimitrov）赢得了八连胜，这让他流血。
- the first time that somebody is injured and loses blood in a contest that involves fighting
- Crespo drew first blood, cutting Green between the eyes in the second round.Crespo吸了第一口血，在第二轮中割断了Green。
- They were standing not far from where the first blood was shed in the fight for independence.他们站在为争取独立而流血的地方不远处。