| 单词 | rollback |
| 释义 | roll back, roll-back, rollback
[f. to roll back.]
1. The action or fact of rolling backwards.
1937Times British Motor Number 13 Apr. p. xxii/4 More than one method is available for automatically preventing roll back on an incline. 1949Shurr & Yocom Mod. Dance v. 181 The swift roll-back carries body weight onto the shoulders. 1978Daily Tel. 4 Mar. 1/8 They died as nine Gnats swept across the airfield to practise a ‘roll back’—a manoeuvre performed by the Red Arrows for several years without incident.
2. [roll v.2 5 h.] U.S. A reduction or decrease; spec., a return (of commodity prices, etc.) to a lower level. Also attrib.
1942Time 11 May 80 OPA have denied their [sc. retailers'] plea for a ‘roll-back’ of ceiling dates that would recognize the lag between rising wholesale and retail prices. 1943Funk & Wagnalls New Stand. Encycl. Year Bk. 1942 373/1 For Price Roll Back and Price Squeezes, see Business Review under Commodity Prices. 1943Sun (Baltimore) 19 May 7 Promised ‘roll backs’ on cabbage and lettuce will still leave prices of these foods, at the farm, three times as high as they were a year ago. Ibid. 1 July 14/3 Congress had been equally unkind to his eager plan to detour around the thornier difficulties of farm-price control by a rollback food-subsidy scheme. 1945Richmond (Va.) News Leader 20 Aug. 10 The OPA is standing pat on its prediction of a clothing price rollback—eventually. 1959Time 27 Apr. 15/2 The cold war's boundaries in 1959 were much as they had been in 1953—the rollback had been in men's minds, not real estate. 1972Fortune Jan. 101/1 Even the 3.9 percent price increase the company posted for its 1972 models last July, before the price freeze forced a rollback, would have recovered only 65 percent of the unit cost increases anticipated for the current model year. 1973Black Panther 21 Apr. 2/2 This decision provides a legal basis to begin a roll-back of that power. 1974Financial Times 15 Aug. 17/6 We do need the ‘roll back’ which ex-President Nixon promised but (predictably) did not deliver. 1976Lebende Sprachen XXI. 153/2 The pilot noticed an inflight engine roll back from 90 to 80% rpm. |
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