7 sentences

1. 戒掉毒瘾需要极大的毅力。

   jiè​diào dú​yǐn xū​yào jí dà de yì​lì.

   Breaking a drug addiction requires immense willpower.

   Source: Dong Chinese Dictionary

2. 这位运动员拥有超人的毅力。

   zhè wèi yùn​dòng​yuán yōng​yǒu chāo​rén de yì​lì.

   This athlete possesses superhuman perseverance.

   Source: Dong Chinese Dictionary

3. 我非常敬佩他的勇气和毅力。

   wǒ fēi​cháng jìng​pèi tā de yǒng​qì hé yì​lì.

   I greatly admire his courage and perseverance.

   Source: Dong Chinese Dictionary

4. 只要有毅力，任何困难都能克服。

   zhǐ​yào yǒu yì​lì, rèn​hé kùn​nan dōu néng kè​fú.

   As long as one has perseverance, any difficulty can be overcome.

   Source: Dong Chinese Dictionary

5. 他凭着顽强的毅力完成了艰苦的训练。

   tā píng​zhe wán​qiáng de yì​lì wán​chéng le jiān​kǔ de xùn​liàn.

   He completed the grueling training with tenacious willpower.

   Source: Dong Chinese Dictionary

6. 他在比赛的最后阶段凭借顽强的毅力取胜。

   tā zài bǐ​sài de zuì​hòu jiē​duàn píng​jiè wán​qiáng de yì​lì qǔ​shèng.

   He won through sheer perseverance in the final stages of the match.

   Source: Dong Chinese Dictionary

7. 凭借着顽强的毅力，他终于完成了这项艰巨的任务。

   píng​jiè zhe wán​qiáng de yì​lì, tā zhōng​yú wán​chéng le zhè xiàng jiān​jù de rèn​wu.

   With his tenacious perseverance, he finally completed this arduous task.

   Source: Dong Chinese Dictionary