One hired to ride a horse in a race; a groom.

骑师；马夫。

A dealer in horses.

贩马者。

An unfair trader; a cheat.

奸商；骗子。

One who operates a machine, vehicle, etc.

【美】【俚】操作员。

To cheat or deceive.

欺骗。

To jostle against and hinder by riding unfairly.

(赛马时)用不正当乘骑术冲撞或妨碍。

To cheat; be tricky.

欺骗；行诈。

To seek to secure a fair advantage by maneuvering.

用巧计获取正当的利益。