4 sentences

1. 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

2. 脓液顺着伤口的裂缝溃了出来。

   nóng​yè shùn​zhe shāng​kǒu de liè​fèng huì le chū​lái.

   Pus oozed out through the crack in the wound.

   Source: Dong Chinese Dictionary

3. 洪水冲力太大，这段河堤终于溃了。

   hóng​shuǐ chōng​lì tài dà, zhè duàn hé​dī zhōng​yú kuì le.

   The force of the flood was too great, and this section of the riverbank finally burst.

   Source: Dong Chinese Dictionary

4. 由于感染严重，他的牙龈溃了一大块。

   yóu​yú gǎn​rǎn yán​zhòng, tā de yá​yín kuì le yī dà kuài.

   Due to a severe infection, a large area of his gums ulcerated.

   Source: Dong Chinese Dictionary