7 sentences

1. 政府致力于缩小城乡差距。

   zhèng​fǔ zhì​lì​yú suō​xiǎo chéng​xiāng chā​jù.

   The government is committed to narrowing the gap between urban and rural areas.

   Source: Dong Chinese Dictionary

2. 科学家们致力于揭示自然界的发展规律。

   kē​xué​jiā men zhì​lì​yú jiē​shì zì​rán​jiè de fā​zhǎn guī​lǜ.

   Scientists are dedicated to revealing the laws of nature.

   Source: Dong Chinese Dictionary

3. 那个扩张的时代，各国都致力于开疆斥土。

   nà gè kuò​zhāng de shí​dài, gè guó dōu zhì​lì​yú kāi jiāng chì tǔ.

   During that era of expansion, nations were dedicated to expanding their territories.

   Source: Dong Chinese Dictionary

4. 政府致力于缩小城乡差距，促进城镇发展。

   zhèng​fǔ zhì​lì​yú suō​xiǎo chéng​xiāng chā​jù, cù​jìn chéng​zhèn fā​zhǎn.

   The government is committed to narrowing the urban-rural gap and promoting the development of towns.

   Source: Dong Chinese Dictionary

5. 中国正致力于推动中西部地区的城镇化。

   Zhōng​guó zhèng zhì​lì​yú tuī​dòng zhōng​xī​bù dì​qū de chéng​zhèn​huà.

   China is committed to promoting urbanization in the central and western regions.

   Source: Dong Chinese Dictionary

6. 那位总监在任期间，致力于改善当地的农田灌溉系统。

   nà wèi zǒng​jiān zài​rèn qī​jiān, zhì​lì​yú gǎi​shàn dāng​dì de nóng​tián guàn​gài xì​tǒng.

   During his tenure, the director was committed to improving the local farmland irrigation system.

   Source: Dong Chinese Dictionary

7. 作为这所顶尖大学的校长，他致力于提升学校的科研水平。

   zuò​wéi zhè suǒ dǐng​jiān dà​xué de xiào​zhǎng, tā zhì​lì​yú tí​shēng xué​xiào de kē​yán shuǐ​píng.

   As the president of this top university, he is committed to improving the school's research standards.

   Source: Dong Chinese Dictionary