One-horse race:
一匹马的比赛 ×
胜负分明的比赛 √
例句:
He described the election as a one-horse race.
他称这次选举是一场胜负分明的比赛。
One-horse town:
一匹马的城镇 ×
乡村小镇 √
例句:
This was a one-horse town, a beautiful quiet place.
这里以前是个乡村小镇,宁静而又景色秀丽。
Don't ride the high horse:
不要骑高马 ×
不要摆架子 √
例句:
You are not my boss, don't ride the high horse.