contract efficacity的用法和樣例：
例句
- The Application Form will be part of the contract.
此申請同合同效力。 - The third party of the contract and the exception of the contract privity principle are two aspects for one question.That is the result of the expansion of the contract effect.
摘要合同第三人與合同相對性原則的例外是一個問題的兩個方面，即是合同效力擴張的結果。
