3 sentences

1. 他的年龄是她的两倍。

   tā de nián​líng shì tā de liǎng bèi.

   He is twice as old as she is.

   Source: Tatoeba

2. 这个价格是去年的两倍。

   zhè gè jià​gé shì qù​nián de liǎng bèi.

   The price is double what it was last year.

   Source: Tatoeba

3. 你年纪差不多是我的两倍了。

   nǐ nián​jì chà​bu​duō shì wǒ de liǎng bèi le.

   You're almost twice my age.

   Source: OpenSubtitles