1·When there is no meeting of the minds, there is no valid contract.
如果没有合意，就不存在有效的合同。
2·To make a valid contract, generally speaking, we need at least two parties;
一般而言，为订立一份有效合同，至少需要两方当事人；
3·To create a valid contract an offer must be accepted without qualifications.
只有毫无保留地接受要约才能成立一个有效的合同。
4·He says the document is a valid contract that entitles him to an 84 percent stake in Facebook.
保罗说这是一份授予他Facebook 84%股份的有效合同。
5·A sales order becomes a valid contract, only if it is confirmed in writing by WIRTGEN CHINA.
仅在WIRTGEN CHINA书面确认的情况下，销售定单方能构成有效的合同。
6·This application form is a valid contract when with the authorized signature and the official seal.
此参展申请表，一经签字、盖章具有法律效力。
7·For a agreement to be a valid contract, the contracting parties must have legal capacity to enter into transactions.
如果一个协议要成为一个有效的合同，合同的各方必须具有进行交易的法定行为能力。
8·For an agreement to be a valid contract, the contracting parties must have legal capacity to enter into transactions.
协议要变成一份有效的合同，缔约方必需具有参加交易的法定资格。
9·In a hosted environment, attempts to invoke hosted Web services will be denied if a valid contract to use those services does not exist.
在托管的环境中，如果不存在使用这些服务的有效合同，则试图调用托管的Web服务将被拒绝。
10·At a minimum, the existence of a contract would serve as an authorization check; without a valid contract, the service cannot be invoked.
最低限度，合同的存在将起到授权核查的作用；如果没有有效的合同，将不能调用服务。