學個詞 Learn A Word:1229 step up

　　今天我們要學的詞是step up. To step up, 是加強的意思。 "Our team stepped up our defense in the second half and won the game," 我們隊下半場比賽加強防守，最后贏得了比賽的勝利。 "Former Fed Chairman Alan Greenspan is stepping up his call for Congress to let the Bush-era tax cuts expire," 前美聯(lián)儲主席格林斯潘加大呼聲，要求國會讓布什任期內通過的減稅法案到期自動失效。 "France stepped up its efforts to block north African migrants from entering its territory from Italy," 法國加大力度，阻止非洲北部的人從意大利進入法國。好的，今天我們學習的詞是step up...