學個詞 Learn A Word:1558 roll back

今天我們要學的詞是 roll back. Roll back 意思是后退，退步。國際艾滋病大會星期天在華盛頓開幕，The participants called for governments not to roll back progress made against the epidemic even though they're facing tight budgets. 與會代表呼吁各國政府，雖然面臨預算壓力，也不要讓打擊艾滋病的進展退步。美聯(lián)航上周五國內(nèi)機票漲價，業(yè)界專家說，United could be forced to roll back the increase if other airlines don't match it soon. 如果其他航空公司不跟進的話，美聯(lián)航可能會被迫將票價降低到漲價前的水平。好的，今天我們學習的詞是 roll back, roll back, roll back....