6 sentences

1. 我不想要你的旧内裤。

   wǒ bù xiǎng yào nǐ de jiù nèi​kù.

   I don't want your old underwear.

   Source: OpenSubtitles

2. 我的内裤是黑色的。

   wǒ de nèi​kù shì hēi​sè de.

   My underwear is black.

   Source: Tatoeba

3. 他偷了你的内裤。

   tā tōu le nǐ de nèi​kù.

   He stole your underwear.

   Source: OpenSubtitles

4. 你没有幸运内裤。

   nǐ méi​yǒu xìng​yùn nèi​kù.

   You don't have lucky underwear.

   Source: OpenSubtitles

5. 到处都是脏内裤。

   dào​chù dōu shì zāng nèi​kù.

   There's dirty underwear everywhere.

   Source: OpenSubtitles

6. 他每天都会换洗内裤以保持个人卫生。

   tā měi tiān dōu huì huàn​xǐ nèi​kù yǐ bǎo​chí gè​rén wèi​shēng.

   He changes his underwear every day to maintain personal hygiene.

   Source: Dong Chinese Dictionary