Cách sử dụng
The expression "rein back" comes from horse riding. It means to make your horse slow down or stop by pulling on the reins that are attached to the horse's mouth. In everyday language, the expression is used when you want someone to slow down or stop what they are doing. For example, you might tell a friend to "rein back" on their spending if they are spending too much money. Or a boss might tell an employee to "rein back" their enthusiasm if they are being too pushy or aggressive. The expression can be used in both formal and informal situations and is a way of politely telling someone to slow down or be more cautious.