People will promise you the world but until they sign that engagement letter, it means nothing.
对方会对你夸下海口但在签合同之前，那毫无意义。
诉讼双雄 第4季
Deal memo on Friedman Technologies, engagement letter signed by Stillman, and, oh, two front-row tickets to daft punk for you and Rachel tonight.
弗莱德曼科技公司的交易备忘，斯蒂尔曼签名的约定书，还有今晚你跟瑞秋一起去看的傻朋克演唱会前排票。
英语百科
Engagement letter
This article uses the word engagement in a legal sense.
An engagement letter defines the legal relationship (or engagement) between a professional firm (e.g., law, investment banking, consulting, advisory or accountancy firm) and its client(s). This letter states the terms and conditions of the engagement, principally addressing the scope of the engagement and the terms of compensation for the firm.