學(xué)個(gè)詞 Learn A Word:1696 expansion

　　今天我們要學(xué)的詞是expansion。Expansion 擴(kuò)展，擴(kuò)充。The Kennedy Arts Center unveiled a $100 million expansion plan. 肯尼迪藝術(shù)中心宣布擴(kuò)展計(jì)劃，耗資一億美元。President Obama supported the expansion of H1B visas from 65,000 to 115,000 a year. 美國(guó)總統(tǒng)奧巴馬支持將每年的外籍人員工作簽證發(fā)放數(shù)量從六萬(wàn)五千個(gè)增加到11萬(wàn)五千個(gè)。The Pentagon is moving toward a major expansion of its cyber security force to counter increasing attacks on the nation's computer networks. 美國(guó)五角大樓計(jì)劃擴(kuò)充負(fù)責(zé)網(wǎng)絡(luò)安全的人員和能力，抵御美國(guó)電腦系統(tǒng)受到的越來(lái)越多的攻擊。好的，今天我們學(xué)習(xí)的詞是 expansion, expansion, expansion...