3 sentences

1. 你为什么想看黑盒子？

   nǐ wèi​shén​me xiǎng kàn hēi​hé​zi?

   Why do you want to see the black box?

   Source: OpenSubtitles

2. 那个黑盒子是非卖品。

   nà​ge hēi​hé​zi shì fēi​mài​pǐn.

   That black box is not for sale.

   Source: OpenSubtitles

3. 有两个所谓的黑盒子，实际上是橙色的。

   yǒu liǎng​ge suǒ​wèi de hēi​hé​zi, shí​jì​shang shì chéng​sè de.

   There are two so-called black boxes, which are actually orange.

   Source: CCMatrix