6 sentences

1. 他每天忙于处理繁重的政务。

   tā měi tiān máng yú chǔ​lǐ fán​zhòng de zhèng​wù.

   He is busy every day handling heavy government affairs.

   Source: Dong Chinese Dictionary

2. 他每天都要承担繁重的体力劳动。

   tā měi tiān dōu yào chéng​dān fán​zhòng de tǐ​lì láo​dòng.

   He has to perform heavy physical labor every day.

   Source: Dong Chinese Dictionary

3. 繁重的工作任务让他忙得焦头烂额。

   fán​zhòng de gōng​zuò rèn​wu ràng tā máng de jiāo​tóu​làn'é.

   Heavy workloads have left him utterly overwhelmed.

   Source: Dong Chinese Dictionary

4. 他终于从繁重的工作中解脱了出来。

   tā zhōng​yú cóng fán​zhòng de gōng​zuò zhōng jiě​tuō le chu​lai.

   He finally freed himself from the heavy workload.

   Source: Dong Chinese Dictionary

5. 新技术将人们从繁重的体力劳动中解放出来。

   xīn jì​shù jiāng rén​men cóng fán​zhòng de tǐ​lì láo​dòng zhōng jiě​fàng chu​lai.

   New technologies have liberated people from heavy physical labor.

   Source: Dong Chinese Dictionary

6. 即使是在最繁重的任务面前，他也从未表现出解怠。

   jí​shǐ shì zài zuì fán​zhòng de rèn​wu miàn​qián, tā yě cóng​wèi biǎo​xiàn chū xiè​dài.

   Even when faced with the most arduous tasks, he never showed any signs of slackness.

   Source: Dong Chinese Dictionary