6 sentences

1. 许多农村青年进城务工。

   xǔ​duō nóng​cūn qīng​nián jìn​chéng wù​gōng.

   Many young people from the countryside go to the cities to work.

   Source: Dong Chinese Dictionary

2. 他长期外出务工，每年只回家一次。

   tā cháng​qī wài​chū wù​gōng, měi nián zhǐ huí​jiā yī cì.

   He has been working away from home for a long time and only returns once a year.

   Source: Dong Chinese Dictionary

3. 村里的青壮年劳力都进城务工了。

   cūn lǐ de qīng​zhuàng​nián láo​lì dōu jìn​chéng wù​gōng le.

   The young and able-bodied laborers in the village have all gone to the cities to work.

   Source: Dong Chinese Dictionary

4. 近年来，大量农村剩余劳动力进城务工。

   jìn​nián lái, dà​liàng nóng​cūn shèng​yú láo​dòng​lì jìn​chéng wù​gōng.

   In recent years, a large number of surplus rural laborers have moved to cities for work.

   Source: Dong Chinese Dictionary

5. 春节期间，成千上万的在外务工人员开始返乡。

   Chūn​jié qī​jiān, chéng​qiān​shàng​wàn de zài wài wù​gōng rén​yuán kāi​shǐ fǎn​xiāng.

   During the Spring Festival, thousands of migrant workers begin to return to their hometowns.

   Source: Dong Chinese Dictionary

6. 由于年轻人大多进城务工，村里的农田大都荒废了。

   yóu​yú nián​qīng​rén dà​duō jìn​chéng wù​gōng, cūn​lǐ de nóng​tián dà​dōu huāng​fèi le.

   Because most young people have gone to the city for work, much of the village's farmland has been left fallow.

   Source: Dong Chinese Dictionary