反堕胎者所作的加强法规的尝试失败了。An attempt by anti-abortionists to tighten the rules was defeated.首都加强了警备，准备迎接总统的到来。Security tightened in the capital in readiness for the president's arrival.到中午时分北风会加强到6级。Northerly winds will inc...
The degree of recombination is reciprocal in most cases.重新结合的程度在大多数情况下是相互的.The committee recommended that recombination DNA work at Princeton be considered in this same light.委员会建议用同样的观点来考虑在普林斯顿的重组体.ECHO cloning is a rap...