This contract will come into force as soon as it is signed by two parties. 合同一经双方签定即生效。
　　Once a contract is made， it must be strictly implemented. 合同一旦确定就应严格执行。
　　Words and Phrases to bring a contract into effect 使合同生效
　　to come into effect 生效
　　to go (enter)into force 生效
　　to cease to be in effect/force 失效
　　to carry out a contract 执行合同
　　to execute/implement/fulfil/perform a contract 执行合同
　　cancellation of contract 撤消合同
　　breach of contract 违反合同
　　to break the contract 毁约
　　to cancel the contract 撤消合同
　　to tear up the contract 撕毁合同
　　to approve the contract 审批合同
　　to honour the contract 重合同
　　to annual the contract 废除合同

　　to terminate the contract 解除合同
　　to alter the contract 修改合同
　　to abide by the contract 遵守合同
　　to go back on one's words 反悔
　　to be legally binding 受法律约束
　　to stand by 遵守 non-payment 拒不付款
　　to secure one's agreement 征得...的同意
　　Additional Words and Phrases contract price 合约价格
　　contract wages 合同工资
　　contract note 买卖合同（证书）
　　contract of employment 雇佣合同
　　contract of engagement 雇佣合同
　　contract of carriage 运输合同
　　contract of arbitration 仲裁合同
　　contract for goods 订货合同
　　contract for purchase 采购合同
　　contract for service 劳务合同
　　contract for future delivery 期货合同
　　contract of sale 销售合同
　　contract of insurance 保险合同
　　contract sales 订约销售
　　contract law 合同法
　　to ship a contract 装运合同的货物
　　contractual dispute 合同上的争议
　　a long-term contract 长期合同
　　a short-term contract 短期合同
　　contract parties 合同当事人
　　contractual practice/usage 合同惯例
　　contractual claim 根据合同的债权
　　contractual liability/obligation 合同规定的义务
　　contractual income 合同收入
　　contractual specifications 合同规定
　　contractual terms & conditions 合同条款和条件
　　contractual guarantee 合同规定的担保
　　contractual damage 合同引起的损害
　　contractual-joint-venture 合作经营，契约式联合经营
　　completion of contract 完成合同
　　execution of contract 履行合同
　　performance of contract 履行合同
　　interpretation of contract 解释合同
　　expiration of contract 合同期满
　　renewal of contract 合同的续订