3 sentences

1. 中国是一个负责任的大国。

   Zhōng​guó shì yī gè fù zé​rèn de dà​guó.

   China is a responsible major power.

   Source: Dong Chinese Dictionary

2. 很久以前，这四大国和谐共处。

   hěn jiǔ yǐ​qián, zhè sì dà​guó hé​xié gòng​chǔ.

   Long ago, the four nations lived together in harmony.

   Source: OpenSubtitles

3. 只要你不触犯全球超级大国就行。

   zhǐ​yào nǐ bù chù​fàn quán​qiú chāo​jí dà​guó jiù xíng.

   As long as you don't run afoul of a global superpower.

   Source: OpenSubtitles