| 词汇 | be-on-a-roll |
| 释义 | be on a rollidiom informal to be having a successful or lucky period: 连连获胜；好运连连 Pippa won five games in a row and it was obvious she was on a roll.皮帕一连赢了5场比赛，很明显她这段时间打得很顺。 Successful (things or people) a head of steamidiom achiever alive alpha female alpha male arrive ascendant have the world at your feetidiom healthily heavy hitteridiom high-flyer high-flying rail represent successfully superachiever superhit superseller swimmingly |
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