Definition
to experience a period of continuous success or good fortune
處於連勝或好運的狀態；運勢亨通
He has been on a roll since he started using the new training method.
自從他開始使用新的訓練方法後，他就一直運勢亨通。
Their new product is very popular, the company has really been on a roll lately.
他們的新產品非常受歡迎，公司最近真的運勢亨通。
Every album this band has released has been critically acclaimed, they are on a roll now.
這個樂隊發行的每一張專輯都獲得高度評價，他們現在運勢亨通。