a valid contract

常见例句

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。
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。
The WSTK contract service is used to establish whether the user of a service has a valid contract in place, the contract identifier is then referenced on the meter records.
WSTK 合同服务用来确定服务的用户是否拥有一个有效的合同，之后合同标识符将在评测记录中被引用。

Absent precise language in a contract spelling out contingencies, courts use such doctrines as force majeure to decide whether the contract is still valid.
FORBES: Collateral Damage
Visnovsky was traded to the Islanders by Anaheim last June, and the defenseman filed a grievance to have the deal voided because he claimed a no-trade clause in his original contract with Los Angeles was valid.
NPR: Bruins Trade Suspended G Tim Thomas To Islanders