名詞 racer:

1. someone who drives racing cars at high speeds
   同義詞：race driver, automobile driver
2. a fast car that competes in races
   同義詞：race car, racing car
3. an animal that races
4. slender fast-moving North American snakes

1. The racer meant to win the500-meter race at all risks.
   這個參賽者下定決心無論如何要贏得500公尺賽跑的勝利。
2. The racer meant to win the500-mile race at all hazards.
   這位競賽者決心不顧一切危險，贏得這場500英里的車賽。

rac.er

n.（名詞）
One that engages in races or is capable of great speed:
參加速度比賽者：參加賽跑的東西或能跑得非?？斓臇|西：
例句：
a dog bred as a racer.
為競賽而繁殖的狗

Any of various fast-moving North American snakes of the genusColuber.
黑蠅蛇：一種北美游蠅 屬的移動迅速的蛇