long narrow strap fastened to the bit of a bridle and used to guide and control a horse, etc.
means of control
"he took up the reins of government"
"rein a horse"
"They reined in in front of the post office"
"He reined in his horses in front of the post office"
"rule one's temper"
Fathers are able to hand the reins directly to their sons.
出自： M. McLuhan
I made a vow to keep a tighter rein on my tongue.
出自： J. M. Coetzee
Edyrn rein'd his charger at her side.
Sweet Lord..rein thy tongue.
出自：Love's Labour's Lost , Shakespeare