单词d-c-s-
网络: 控制系统；分散型控制系统；分布式控制系统
Surprised? Libraries are changing with the times, said Washington D. C. "s chief librarian.
“图书馆也在与时俱进。”华盛顿首席图书馆馆长说。
2: Barry had been D. C. "s mayor for 12 years before he was put into prison for involvement with drugs in 1990.
巴里在1990年由于涉及毒品而被关进监狱。在这以前他在华盛顿担任了十二年的市长。
While watching a play in Washington, D. C. "s Ford"s Theater, Abraham Lincoln was assassinated.
亚伯拉罕。林肯在华盛顿特区福特剧院观剧时遇刺身亡。
Washington"s D. C. "s Centennial Cherry Blossom festival!
华盛顿樱花节百年纪念
Washington, D. C. "s metro system is clean and efficient; therefore, hundreds and thousands of people take it every day.
华盛顿特区的地铁干净而又高效，因此每天有成千上万的人乘坐地铁。