defrayment怎么读，defrayment什么意思，defrayment短语和例句

1.As the Nanjing tap-water outreaching, the government controlled the cholera and economized a great sum of defrayment every year, and let the Nanjing fire fighting system to be more perfectly.

同时，随著自来水管线与救火龙头的装设，南京的消防系统亦更趋完善。

2.As the Nanjing tap-water outreaching, the government controlled the cholera and economized a great sum of defrayment every year, and let the Nanjing fire fighting system to be more perfectly.

同时，随著自来水管线与救火龙头的装设，南京的消防系统亦更趋完善。

3.It analyzes the relation of authentication center, merchant and client, discusses the defrayment problem of E-commerce and puts forward a better scheme.

分析了一个电子商务系统中认证中心，商家，客户三个实体的关系，研究了电子商务的支付问题并提出改进方案。