3 sentences for 决心 (jué​xīn — resolve)

1. 他决心去英国。

   tā jué​xīn qù Yīng​guó.

   He is determined to go to England.

   Source: Tatoeba

2. 他决心投身于振兴民族的大业中。

   tā jué​xīn tóu​shēn yú zhèn​xīng mín​zú de dà​yè zhōng.

   He is determined to devote himself to the great cause of national rejuvenation.

   Source: Dong Chinese Dictionary

3. 我们决心要把这项科研任务攻克下来。

   wǒ​men jué​xīn yào bǎ zhè xiàng kē​yán rèn​wu gōng​kè xià​lai.

   We are determined to complete this scientific research task.

   Source: Dong Chinese Dictionary