Be polite; write diplomatically; even in a declaration of war one observes the rules of politeness.

要有礼；要按外交辞令写；即使在宣战文告里，依然是要遵循礼节的。

youdao

Be polite; write diplomatically; even in a declaration of war one observes the rules of politeness.

要有礼；要按外交辞令写；即使在宣战文告里，依然是要遵循礼节的。

youdao