Mutual principles
交换条件
🧩 词语组成解析
n. 原则, 原理, 道义, 节操
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
To speak to the public
向公众呼吁
There being no one to help me, I had to do it all alone.
因为没有人帮助我，我不得不独立完成这项工 作。