學(xué)個(gè)詞 Learn A Word:2199_worsen

　　今天我們要學(xué)的詞是 worsen. Worsen 動詞，意思是惡化。網(wǎng)絡(luò)安全專家預(yù)計(jì)，Cyberattacks will only worsen in 2015 as hackers use more advanced techniques to infiltrate networks. 黑客不斷使用更先進(jìn)的滲透手段，2015年網(wǎng)絡(luò)攻擊會進(jìn)一步惡化。在最新民調(diào)中，53 percent of Americans said race relations had worsened since President Obama took office. 百分之53的受訪者認(rèn)為，奧巴馬總統(tǒng)上臺后的美國種族關(guān)系出現(xiàn)了惡化。好的，今天我們學(xué)習(xí)的詞是 worsen, worsen, worsen...