今天我們要學(xué)的短語(yǔ)是lock horns. Lock is spelled l-o-c-k, lock; and horns, h-o-r-n-s, horns; lock horns. Lock是鎖上， horn是動(dòng)物頭上的角，lock horns原指動(dòng)物用角互頂打架，引伸為“激烈爭(zhēng)論”，杠上了。

India and the European Union are likely to lock horns over new green energy norms at the Earth Summit in Brazil. 在巴西召開的地球峰會(huì)上，印度和歐盟很可能就新的綠色能源標(biāo)準(zhǔn)爭(zhēng)論不休。U.S. Attorney General Eric Holder locked horns with congressional Republicans at a hearing on a gun-trafficking case. 美國(guó)司法部長(zhǎng)霍爾德同國(guó)會(huì)共和黨人在聽證會(huì)上因一起槍支走私案頂了起來。The mayor and her deputy locked horns over plans for a new road. 市長(zhǎng)和她的副手因?yàn)樾蘼酚?jì)劃而激烈爭(zhēng)吵。好，今天我們學(xué)習(xí)的詞是lock horns， lock horns， lock horns...