reins

详细解释:pl. 肾脏, 腰部, 肺腑
相关词组:
take the reins
throw the reins to
give the reins to
drop the reins of government

英语解释：

名词 rein:

one of a pair of long straps (usually connected to the bit or the headpiece) used to control a horse同义词：rein