學(xué)個(gè)詞 Learn A Word: upgrade 更新

今天我們要學(xué)的詞是 upgrade. Upgrade 作為名詞，是更新的意思。The Nigerian Customs Service said it requires about N20 billion to do a system upgrade at the nation’s international airports. 尼日利亞海關(guān)說，他們需要200億奈拉才能完成尼日利亞各大國際機(jī)場的系統(tǒng)更新。Leading Silicon Valley companies including Facebook and Google are investing in encryption upgrades. 包括臉書和谷歌在內(nèi)的硅谷大科技公司都在投資更新自己的加密技術(shù)。好的，我們今天學(xué)習(xí)的詞是 upgrade, upgrade, upgrade...