3 sentences

1. 他苦苦哀求医生救救他的孩子。

   tā kǔ​kǔ āi​qiú yī​shēng jiù jiù tā de hái​zi.

   He begged the doctor to save his child.

   Source: Dong Chinese Dictionary

2. 他苦苦哀求老板再给他一次机会。

   tā kǔ​kǔ āi​qiú lǎo​bǎn zài gěi tā yī cì jī​huì.

   He begged the boss hard for another chance.

   Source: Dong Chinese Dictionary

3. 面对大家的苦苦哀求，他依然无动于衷。

   miàn​duì dà​jiā de kǔ​kǔ āi​qiú, tā yī​rán wú​dòng​yú​zhōng.

   In the face of everyone's desperate pleas, he remained unmoved.

   Source: Dong Chinese Dictionary