3 sentences

1. 我们还没能去除污渍。

   wǒ​men hái​méi néng qù chú wū​zì.

   We haven't been able to remove the stain yet.

   Source: OpenSubtitles

2. 重复这些步骤以尝试去除持久性污渍。

   chóng​fù zhè​xiē bù​zhòu yǐ cháng​shì qù chú chí​jiǔ xìng wū​zì.

   Repeat these steps to attempt to remove persistent stains.

   Source: CCMatrix

3. 昨天你的衬衫上有草莓甜甜圈的污渍。

   zuó​tiān nǐ de chèn​shān shang yǒu cǎo​méi tián​tián​quān de wū​zì.

   You had a strawberry donut stain on your shirt yesterday.

   Source: OpenSubtitles