1. The government has committed billions toward defraying the costs of the war. 政府已许诺用数亿万美元来支付战争的费用。
2. Some plan must be devised for defraying the expenses. 必须想出支付费用的办法。
3. After defraying all the expenses, they were able to lay aside fifteen yuan each month. 在支付所有的开支以后，他们每月能积蓄十五元。
4. Both are trying to think of ways of defraying the cost, such as special levies on local businesses or on hotel beds. 同时，这两座城市也在寻找偿还费用的办法，比如向当地的商店和旅店征收特税。
5. Finally, the authentication system based on CFCA PKI is studied, and it is applied to the study of the identity authentication of system client and the safety transmission of defraying data from WEB. 研究了基于CFCA PKI的认证体系，并将它应用于系统的客户身份认证及网上支付数掘的安全传输。
