指马的 meaning in Chinese

eyeflap

A horse is said to be ' on the bit ' when the neck is more or less raised and arched according to the stage of training and the extension or collection of the pace , accepting the bridle with a light and soft contact and submissiveness throughout
'受衔 '是指马的颈部一定程度的抬高并且弓弯起来，抬高的程度随训练阶段和步幅的伸长和缩短而不同，始终轻微且柔和地接触和顺从地承受著口衔。