on a roll

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释义
超常发挥，连续获胜中；正在走好运，手气好
Having a streak of good luck or good progress or success.

例句
Jimmy: Listen, you are on a roll, my friend. I say we strike while the iron is hot. (Better Call Saul)
吉米：听着，你可是超常发挥了，我的朋友。咱们要趁热打铁才行。（风骚律师）