suretyn.保证人；保证；担保surety agreement担保契约surety obligation保证债务,索偿债务surety commission[经] 保证手续费, 保证人佣金suretyship contract[法] 保证契约suretyship obligation[法] 保证债务surety for tax payment纳税担保surety bond for project工程保证担保surety science and engineering保证性科学与工程Surety contract involving foreign interest涉外担保合同