3 sentences

1. 他为了供孩子上学，受了不少皮肉之苦。

   tā wèi​le gōng hái​zi shàng​xué, shòu le bù​shǎo pí​ròu zhī kǔ.

   He endured a lot of physical hardship to pay for his children's education.

   Source: Dong Chinese Dictionary

2. 这道伤口只是伤及皮肉，没有伤到骨头。

   zhè dào shāng​kǒu zhǐ​shì shāng​jí pí​ròu, méi​yǒu shāng dào gǔ​tou.

   This wound is only flesh-deep and hasn't reached the bone.

   Source: Dong Chinese Dictionary

3. 这只是一点皮肉之伤，你擦点药水，几天就能好。

   zhè zhǐ​shì yī​diǎn pí​ròu zhī shāng, nǐ cā diǎn yào​shuǐ, jǐ tiān jiù néng hǎo.

   This is just a minor surface wound; apply some antiseptic and it will heal in a few days.

   Source: Dong Chinese Dictionary