China boasts the world's earliest observatory, built in Nanking in 1385 in the Ming Dynasty ( 1368 A . D . - 1644 A . D . ), three centuries ahead of the Greenwich Observatory built in Britain in 1670.中国建有世界上最早的气象台....
Formerly most of our household utensils were made of brass.以前我们家庭用的器皿多数是用黄铜做的.Some utensils were in a state of decay when they were unearthed.有些器皿在出土时已经残破.Pens and pencils are writing utensils.钢笔和铅笔是书写工具....
Economic crises recur periodically.经济危机周期性地发生.The same old favorites recur year in year out with monotonous regularity.相同的决心以单调的规律年复一年地出现.He did not recur in thought to New York or the flat.他再也没去想纽约或者他的公寓....
abbr.Cape Lookout National Seashore (North Carolina) 国家海岸线海角监视哨（北卡罗来纳州），connectionless network service 无连接网络服务，connectionlessmode network service 无连接网络业务...