學個詞 Learn A Word:2199_worsen

　　今天我們要學的詞是 worsen. Worsen 動詞，意思是惡化。網絡安全專家預計，Cyberattacks will only worsen in 2015 as hackers use more advanced techniques to infiltrate networks. 黑客不斷使用更先進的滲透手段，2015年網絡攻擊會進一步惡化。在最新民調中，53 percent of Americans said race relations had worsened since President Obama took office. 百分之53的受訪者認為，奧巴馬總統(tǒng)上臺后的美國種族關系出現(xiàn)了惡化。好的，今天我們學習的詞是 worsen, worsen, worsen...