3 sentences

1. 敌军在全线发起了进攻。

   dí​jūn zài quán​xiàn fā​qǐ le jìn​gōng.

   The enemy launched an attack along the entire front line.

   Source: Dong Chinese Dictionary

2. 敌军在猛烈的进攻下全线溃了。

   dí​jūn zài měng​liè de jìn​gōng xià quán​xiàn kuì le.

   The enemy forces collapsed entirely under the fierce offensive.

   Source: Dong Chinese Dictionary

3. 京沪高铁现已实现全线通车。

   Jīng Hù gāo​tiě xiàn yǐ shí​xiàn quán​xiàn tōng​chē.

   The Beijing-Shanghai High-Speed Railway is now fully operational along its entire line.

   Source: Dong Chinese Dictionary