An oral agreement is not enough; we must have a written promise.

只有口头协议是不够的；我们必须有一个书面承诺。

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My practice:Make an announcement to the person you value that you will start to learn the oral English, and promise to make great achievements within a certain period.

宣布你要开始学英语口语了，并且保证要在一定时间内拿出成绩来。

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Integration Clauses : Any oral promise an employer or its attorney makes to the employee is not binding unless it is written down in the severance agreement that the parties sign.

FORBES: The Top Ten Reasons to Hire a Lawyer to Review Your Severance Agreement