thoroughbreds
n.
纯种的动物（尤指马）( thoroughbred的名词复数 );
（大写）撒拉布列特马（英国纯血马）;
受过严格训练的人;
有良好教养的人;
例句:
-
Mustangs don't belong in races with thoroughbreds.
良驹大赛,用不着目石荡野马来掺和.
来自电影对白
-
Thoroughbreds can be distinguished by the color of their scales and their breath.
从腹部和颈部皮肤的颜色差别可以看出他们血统纯度的不同.
-
Her boyfriend prefers fast cars to thoroughbreds.
来自WSJ
-
There are thoroughbreds on lawns there, and an alligator farm.
来自NEWYORKER
-
Those are the guys that are qualified to get in but the guys that ultimately come out are thoroughbreds, they're racehorses.
来自BBC