This is not meant to delimit what approaches social researchers can adopt.这并不是为了限制社会研究人员所能采用的方法。The group which they delimit are called natural groups.由此划分出的类群称为自然类群.to delimit the epidemic area and the protection area划定...
His powerful serve was too much for the defending champion.他的大力发球让卫冕冠军难以招架。He talked of defending small nations, of ensuring that aggression does not pay.他谈到了保卫小国家，绝不让侵略得逞。The cost of defending the libel action almost ba...