option n contract 期权合约
commission n contract 商业代理合同
production n contract curve 生产契约曲线
design n by contract 契约式设计
foreign n exchange contract 外汇合约
repudiation n of the contract 不履行合约
n executory contract 尚待执行的合同
contract n 契约
n-year Annuity Contract n年期年金
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