The establishment of the invalid contract system is the basis of realizing the contracts effect.
无效合同制度的建立是解决合同效力的基础。
The contract was stated to be invalid.
那份合同宣布作废。
As the date of expiry is over, the contract is invalid.
由于已经过了期限,这份合约是无效的。
As the date of expiry is over, the contract is invalid.
由于已经过了期限,这份合约是无效的。
应用推荐