The stone steps, dating back to 1855, are beginning to wear.那些可以追溯到1855年的石阶开始出现磨损。They've been dating for three months.他们已约会3个月了。The most frequently used method is radiocarbon dating.最常用的方法是放射性碳定年法。...
The council recently drew fire for its intervention in the dispute.委员会最近因为介入该起争端而遭到批评。He had timed his intervention well.他选择介入的时机恰到好处。The incident was used as a pretext for intervention in the area.这次事件成了干涉那个地区的借口。...
Keywords multimedia network teaching; network courseware; didactical resource.[关键词]媒体网络教学; 网络课件; 教学资源.The Computer - Assisted Instruction [ CAI ] has long been proved is an effective didactical means.计算机辅助 教学,作为一种新型的教学手段...