engagement letter的用法和樣例：
例句
- A ceremony was held in Beijing, during which the AMSS Director, Professor Guo Lei, presented the appointment letter to Professor Tang.
聘書(shū)頒發(fā)儀式在北京舉行，由郭雷院長(cháng)親自頒發(fā)。 - The letter of attorney must list the items of trust and the limit of powers.
授權委托書(shū)必須記明委托事項和權限。 - By Letter of Proxy, one agent may represent more than one directors.
根據委托書(shū)，一名代表可以代表一名以上的董事。
