3 sentences

1. 不要冲洗你的避孕套。

   bù yào chōng​xǐ nǐ de bì​yùn​tào.

   Don't flush your condoms.

   Source: OpenSubtitles

2. 我想买三个避孕套。

   wǒ xiǎng mǎi sān gè bì​yùn​tào.

   I want to buy three condoms.

   Source: OpenSubtitles

3. 正确使用避孕套可以降低感染性病的风险。

   zhèng​què shǐ​yòng bì​yùn​tào kě​yǐ jiàng​dī gǎn​rǎn xìng​bìng de fēng​xiǎn.

   Correct use of condoms can reduce the risk of contracting STIs.

   Source: Dong Chinese Dictionary