on a roll片語KK [ɑn ə rol] /ɑn ə ɹoʊl/發音片語1連連得手、順風順水、手氣正旺口語The team is on a roll, having won six games straight.這支隊伍正連連得手,已經六連勝了。2興頭上、越講越起勁口語Don't interrupt him now; he's on a roll.現在別打斷他,他正講得起勁。