一种长久的友好关系要求双方都十分真诚。的翻译：A long-term friendly relationship requires both sides are sincere. 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

A lasting friendly relationship requires both parties are very sincere.

A long-term friendly relationship requires both sides are sincere.

One kind of long-time friendly relations request both sides extremely to be both sincere.

A long-term friendly relations between both sides requested 10 sub-sincere.

A long-term friendly relationship requires both sides are sincere.