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In a bad traffic jam, cars can be backed up for miles. 在严重交通堵塞时,车龙可能长达几英里。 back up有支持和援助的意思(看下例),用做被动语态时,back up也有堵塞的意思。 I always back you up. 我总是
1. New York is girding for a day of potential unrest. Occupy Wall Street organizers say they are planning to go ahead with a show of civil disobedience Thursday. They will be joined by city leaders who have denounced the raid that cleared the park pr
By Lisa Schlein Geneva 19 December 2006 The Global Climate Observing System, an organization sponsored by the World Meteorological Organization, is launching an initiative to provide vital climate information for development needs in Africa. Lisa Sc
China is accelerating research work into digital currency as the country hopes to use new techniques to digitize paper currency and make transactions more transparent and efficient. 中国正在加快数字货币的研究工作,以求使用新技术将