rollback
n.
also roll-back, "action of rolling backward," 1937; "reduction," 1942, American English, from verbal phrase, from roll, v. + back, adv..
| 词汇 | rollback | 
| 词根词缀 | Online Etymology Dictionary rollback n. also roll-back, "action of rolling backward," 1937; "reduction," 1942, American English, from verbal phrase, from roll, v. + back, adv.. | 
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