7 sentences

1. 我感谢他们的辛勤工作。

   wǒ gǎn​xiè tā​men de xīn​qín gōng​zuò.

   I thank them for their hard work.

   Source: United Nations

2. 辛勤工作的回报是更多的工作。

   xīn​qín gōng​zuò de huí​bào shì gèng​duō de gōng​zuò.

   The reward for hard work is more work.

   Source: CCMatrix

3. 在那个年代人们都辛勤地工作着。

   zài nà​ge nián​dài rén​men dōu xīn​qín de gōng​zuò zhe.

   People worked hard in those days.

   Source: CCMatrix

4. 我们的眼睛每天都在辛勤地工作。

   wǒ​men de yǎn​jing měi​tiān dōu zài xīn​qín de gōng​zuò.

   Our eyes work hard every day.

   Source: CCMatrix

5. 那些龙虾代表了我几个月的辛勤劳动。

   nà​xiē lóng​xiā dài​biǎo le wǒ jǐ​ge yuè de xīn​qín láo​dòng.

   Those lobsters represented months of hard work to me.

   Source: OpenSubtitles

6. 我们许多人辛勤工作，都是为了让子女过上舒适的生活。

   wǒ​men xǔ​duō rén xīn​qín gōng​zuò, dōu shì wèi​le ràng zǐ​nǚ guò shang shū​shì de shēng​huó.

   Many of us work hard in order to provide a comfortable life for our children.

   Source: CCMatrix

7. 一次误操作，多年的辛勤工作和研究可能就会付诸东流。

   yī​cì wù cāo​zuò, duō​nián de xīn​qín gōng​zuò hé yán​jiū kě​néng jiù huì fù​zhū​dōng​liú.

   One wrong move and years of hard work and research could go down the drain.

   Source: CCMatrix