Definition
to experience a period of continuous success or good fortune
处于连胜或好运的状态；运势亨通
He has been on a roll since he started using the new training method.
自从他开始使用新的训练方法后，他就一直运势亨通。
Their new product is very popular, the company has really been on a roll lately.
他们的新产品非常受欢迎，公司最近真的运势亨通。
Every album this band has released has been critically acclaimed, they are on a roll now.
这个乐队发行的每一张专辑都获得高度评价，他们现在运势亨通。