7 sentences

1. 他们有三个未成年子女。

   tā​men yǒu sān​ge wèi​chéng​nián zǐ​nǚ.

   They have three minor children.

   Source: United Nations

2. 我还是未成年人。

   wǒ hái​shi wèi​chéng​nián​rén.

   I'm still a minor.

   Source: OpenSubtitles

3. 有未成年人在啊！

   yǒu wèi​chéng​nián​rén zài a!

   There are minors here!

   Source: OpenSubtitles

4. 我不是未成年人。

   wǒ bù​shì wèi​chéng​nián​rén.

   I'm not a minor.

   Source: OpenSubtitles

5. 你还是未成年人。

   nǐ hái​shi wèi​chéng​nián​rén.

   You're still a minor.

   Source: OpenSubtitles

6. 他们几乎有一半是未成年人。

   tā​men jī​hū yǒu yī​bàn shì wèi​chéng​nián​rén.

   Almost half of them are minors.

   Source: CCMatrix

7. 未成年人必须由成人陪同登上渡轮。

   wèi​chéng​nián​rén bì​xū yóu chéng​rén péi​tóng dēng shàng dù​lún.

   Minors have to be accompanied by an adult to board the ferry.

   Source: CCMatrix