4 sentences

1. 唯一不见的是指甲油。

   wéi​yī bù​jiàn de shì zhǐ​jia​yóu.

   The only thing missing is the nail polish.

   Source: AI Challenger 2017

2. 那是指甲油吗？

   nà shì zhǐ​jia​yóu ma?

   Is that nail polish?

   Source: OpenSubtitles

3. 你怎么知道指甲油是什么味道？

   nǐ zěn​me zhī​dao zhǐ​jia​yóu shì shén​me wèi​dao?

   How do you know what nail polish tastes like?

   Source: OpenSubtitles

4. 现代指甲油是汽车油漆的副产品。

   xiàn​dài zhǐ​jia​yóu shì qì​chē yóu​qī de fù​chǎn​pǐn.

   Modern nail polish was a by-product of car paint.

   Source: CCMatrix