2.2礼貌原则应用的重要性的翻译：2.2 application of politeness principle importance 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

2.2 Application of the principle of the importance of politeness

2.2 application of politeness principle importance

2.2 politeness principle application importance

importance of applying the principle 2.2 courtesy

2.2 application of politeness principle importance