名词短语
中文翻译：签名并密封的合同
同义词：
['signed agreement', 'sealed agreement']
例句：
-
1.The company has signed a signed and sealed contract with the government for a new project.
该公司已与政府签署了一份新的项目合同。
-
2.The contract was sealed with a red seal to ensure its validity.
合同被红印章封住以确保其有效性。
-
3. The signing of the contract is mandatory for both parties involved.
双方签署合同是强制性的。