马绳,控制控制
Checkrein \Check"rein`\, n. 1. A short rein looped over the check hook to prevent a horse from lowering his head; -- called also a {bearing rein}. 2. A branch rein connecting the driving rein of one horse of a span or pair with the bit of the other horse.
checkrein n : a rein designed to keep the horse's head in the desired position [syn: {bearing rein}]